1
                                                                     Exhibit 4.1

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                                   -----------


                                    INDENTURE


                          Dated as of January 31, 1997

                                     between

                               TRENWICK GROUP INC.

                                       and

                            THE CHASE MANHATTAN BANK,


                                   as Trustee


                                   -----------


                                  $113,403,000


            8.82% JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES

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                                TABLE OF CONTENTS




                                                                                                  Page
                                                                                                  ----
                                                                                               
ARTICLE I.     DEFINITIONS...................................................................        1

         SECTION 1.01.    Definitions........................................................        1

ARTICLE II.    SECURITIES....................................................................       11

         SECTION 2.01.    Forms Generally....................................................       11
         SECTION 2.02.    Execution and Authentication.......................................       11
         SECTION 2.03.    Form and Payment...................................................       11
         SECTION 2.04.    Legends............................................................       12
         SECTION 2.05.    Global Security....................................................       12
         SECTION 2.06.    Interest...........................................................       13
         SECTION 2.07.    Transfer and Exchange..............................................       14
         SECTION 2.08.    Replacement Securities.............................................       15
         SECTION 2.09.    Treasury Securities................................................       16
         SECTION 2.10.    Temporary Securities...............................................       16
         SECTION 2.11.    Cancellation.......................................................       16
         SECTION 2.12.    Defaulted Interest.................................................       17
         SECTION 2.13.    CUSIP Numbers......................................................       17

ARTICLE III.   PARTICULAR COVENANTS OF THE COMPANY...........................................       18

         SECTION 3.01.    Payment of Principal, Premium and Interest.........................       18
         SECTION 3.02.    Offices for Notices and Payments, etc..............................       18
         SECTION 3.03.    Appointments to Fill Vacancies in Trustee's Office.................       18
         SECTION 3.04.    Provision as to Paying Agent.......................................       19
         SECTION 3.05.    Certificate to Trustee.............................................       19
         SECTION 3.06.    Compliance with Consolidation Provisions...........................       20
         SECTION 3.07.    Limitation on Dividends............................................       20
         SECTION 3.08.    Covenants as to Trenwick Capital Trust I...........................       21
         SECTION 3.09.    Payment of Expenses................................................       21
         SECTION 3.10.    Payment Upon Resignation or Removal................................       21

ARTICLE IV.    SECURITYHOLDERS' LISTS AND REPORTS BY THE
               COMPANY AND THE TRUSTEE.......................................................       22

         SECTION 4.01.    Securityholders' Lists.............................................       22
         SECTION 4.02.    Preservation and Disclosure of Lists...............................       22
         SECTION 4.03.    Reports of the Company.............................................       23
         SECTION 4.04.    Reports by the Trustee.............................................       24



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                                                                                                 Page
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ARTICLE V.     REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS
               ON EVENT OF DEFAULT...........................................................      24

         SECTION 5.01.    Events of Default..................................................      24
         SECTION 5.02.    Payment of Securities on Default; Suit Therefor....................      26
         SECTION 5.03.    Application of Moneys Collected by Trustee.........................      28
         SECTION 5.04.    Proceedings by Securityholders.....................................      28
         SECTION 5.05.    Proceedings by Trustee.............................................      29
         SECTION 5.06.    Remedies Cumulative and Continuing.................................      29
         SECTION 5.07.    Direction of Proceedings and Waiver
                          of Defaults by Majority of Securityholders.........................      30
         SECTION 5.08.    Notice of Defaults.................................................      30
         SECTION 5.09.    Undertaking to Pay Costs...........................................      31
         SECTION 5.10     Waiver of Stay or Extension Laws...................................      31
         SECTION 5.11     Delay or Omission Not Waiver.......................................      31

ARTICLE VI.    CONCERNING THE TRUSTEE........................................................      32

         SECTION 6.01.    Duties and Responsibilities of Trustee.............................      32
         SECTION 6.02.    Reliance on Documents, Opinions, etc...............................      33
         SECTION 6.03.    No Responsibility for Recitals, etc................................      34
         SECTION 6.04.    Trustee, Authenticating Agent, Paying Agents,
                          Transfer Agents or Registrar May Own Securities....................      34
         SECTION 6.05.    Moneys to be Held in Trust.........................................      34
         SECTION 6.06.    Compensation and Expenses of Trustee...............................      35
         SECTION 6.07.    Officers' Certificate as Evidence..................................      35
         SECTION 6.08.    Conflicting Interest of Trustee....................................      36
         SECTION 6.09.    Eligibility of Trustee.............................................      36
         SECTION 6.10.    Resignation or Removal of Trustee..................................      36
         SECTION 6.11.    Acceptance by Successor Trustee....................................      37
         SECTION 6.12.    Succession by Merger, etc..........................................      38
         SECTION 6.13.    Limitation on Rights of Trustee as a Creditor......................      38
         SECTION 6.14.    Authenticating Agents..............................................      38

ARTICLE VII.   CONCERNING THE SECURITYHOLDERS................................................      39

         SECTION 7.01.    Action by Securityholders..........................................      39
         SECTION 7.02.    Proof of Execution by Securityholders..............................      40
         SECTION 7.03.    Who Are Deemed Absolute Owners.....................................      40
         SECTION 7.04.    Securities Owned by Company Deemed Not
                          Outstanding........................................................      40
         SECTION 7.05.    Revocation of Consents; Future Holders Bound.......................      41

ARTICLE VIII.  SECURITYHOLDERS' MEETINGS.....................................................      41

         SECTION 8.01.    Purpose of Meetings................................................      41


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                                                                                                Page
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         SECTION 8.02.    Call of Meetings by Trustee........................................     42
         SECTION 8.03.    Call of Meetings by Company or Securityholders.....................     42
         SECTION 8.04.    Qualifications for Voting..........................................     42
         SECTION 8.05.    Regulations........................................................     42
         SECTION 8.06.    Voting.............................................................     44

ARTICLE IX.    AMENDMENTS....................................................................     44

         SECTION 9.01.    Without Consent of Securityholders.................................     44
         SECTION 9.02.    With Consent of Securityholders....................................     45
         SECTION 9.03.    Compliance with Trust Indenture Act of 1939; Effect of
                          Supplemental Indentures............................................     46
         SECTION 9.04.    Notation on Securities.............................................     47
         SECTION 9.05.    Evidence of Compliance of
                          Supplemental Indenture to be Furnished to Trustee..................     47

ARTICLE X.     CONSOLIDATION, MERGER, SALE, CONVEYANCE AND
               LEASE.........................................................................     47

         SECTION 10.01.   Company May Consolidate, etc., on Certain Terms....................     47
         SECTION 10.02.   Successor Corporation to be Substituted for Company................     48
         SECTION 10.03.   Opinion of Counsel to be Given Trustee.............................     48

ARTICLE XI.    SATISFACTION AND DISCHARGE OF INDENTURE.......................................     48

         SECTION 11.01.   Discharge of Indenture.............................................     48
         SECTION 11.02.   Deposited Moneys and U.S. Government
                          Obligations to be Held in Trust by Trustee.........................     49
         SECTION 11.03.   Paying Agent to Repay Moneys Held..................................     49
         SECTION 11.04.   Return of Unclaimed Moneys.........................................     49
         SECTION 11.05.   Defeasance Upon Deposit of Moneys or U.S.
                          Government Obligations.............................................     50
         SECTION 11.06.   Reinstatement......................................................     51

ARTICLE XII.   IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
               OFFICERS AND DIRECTORS........................................................     51

         SECTION 12.01.   Indenture and Securities Solely Corporate Obligations..............     51

ARTICLE XIII.  MISCELLANEOUS PROVISIONS......................................................     52

         SECTION 13.01.   Successors.........................................................     52
         SECTION 13.02.   Official Acts by Successor Corporation.............................     52
         SECTION 13.03.   Surrender of Company Powers........................................     52
         SECTION 13.04.   Address for Notices, etc...........................................     52
         SECTION 13.05.   Governing Law......................................................     52


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                                                                                                 Page
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         SECTION 13.06.   Evidence of Compliance with Conditions Precedent...................     52
         SECTION 13.07.   Business Days......................................................     53
         SECTION 13.08.   Trust Indenture Act of 1939 to Control.............................     53
         SECTION 13.09.   Table of Contents, Headings, etc...................................     53
         SECTION 13.10.   Execution in Counterparts..........................................     53
         SECTION 13.11.   Separability.......................................................     53
         SECTION 13.12.   Assignment.........................................................     54
         SECTION 13.13.   Acknowledgment of Rights...........................................     54

ARTICLE XIV.   CONDITIONAL RIGHT TO SHORTEN MATURITY;
               PREPAYMENT OF SECURITIES -- NO SINKING FUND...................................     54

         SECTION 14.01.   Special Event Prepayment...........................................     54
         SECTION 14.02.   Optional Prepayment by Company.....................................     55
         SECTION 14.03.   No Sinking Fund....................................................     55
         SECTION 14.04.   Notice of Prepayment; Selection of Securities......................     55
         SECTION 14.05.   Payment of Securities Called for Prepayment........................     56
         SECTION 14.06.   Conditional Right to Shorten Maturity..............................     56

ARTICLE XV.    SUBORDINATION OF SECURITIES...................................................     57

         SECTION 15.01.   Agreement to Subordinate...........................................     57
         SECTION 15.02.   Default on Senior Indebtedness.....................................     57
         SECTION 15.03.   Liquidation; Dissolution; Bankruptcy...............................     58
         SECTION 15.04.   Subrogation........................................................     59
         SECTION 15.05.   Trustee to Effectuate Subordination................................     59
         SECTION 15.06.   Notice by the Company..............................................     59
         SECTION 15.07.   Rights of the Trustee; Holders of Senior Indebtedness..............     61
         SECTION 15.08.   Subordination May Not Be Impaired..................................     61

ARTICLE XVI.   EXTENSION OF INTEREST PAYMENT PERIOD..........................................     62

         SECTION 16.01.   Extension of Interest Payment Period...............................     62
         SECTION 16.02.   Notice of Extension................................................     63


EXHIBIT A      Form of Security; Trustee's  Certificate of Authentication                          A-1


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                             CROSS-REFERENCE TABLE*




     SECTION OF
TRUST INDENTURE ACT
OF 1939, AS AMENDED                                           INDENTURE SECTION
- -------------------                                           -----------------
                                                           
310(a)(1)                       .......................             6.09
   (a)(2)                       .......................             6.09
310(a)(3)                       .......................             N/A
   (a)(4)                       .......................             N/A
310(a)(5)                       .......................             N/A
310(b)                          .......................             6.10, 6.11
310(c)                          .......................             N/A
311(a) and (b)                  .......................             6.13
311(c)                          .......................             N/A
312(a)                          .......................             4.01, 4.02(a)
312(b) and (c)                  .......................             4.02
313(a)                          .......................             4.04
313(b)(1)                       .......................             4.04
313(b)(2)                       .......................             4.04
313(c)                          .......................             4.04
313(d)                          .......................             4.04
314(a)                          .......................             4.03
314(b)                          .......................             N/A
314(c)(1) and (2)               .......................             6.07
314(c)(3)                       .......................             N/A
314(d)                          .......................             N/A
314(e)                          .......................             6.07
314(f)                          .......................             N/A
315(a)(c) and (d)               .......................             6.01
315(b)                          .......................             5.08
315(e)                          .......................             5.09
316(a)(1)                       .......................             5.07
316(a)(2)                       .......................             N/A
316(a) last sentence            .......................             2.09
316(b)                          .......................             9.02
317(a)                          .......................             5.05
317(b)                          .......................             6.05
318(a)                          .......................             13.08


- ------------------

*      This Cross-Reference Table does not constitute part of the Indenture as
       executed and shall not affect the interpretation of any of its terms or
       provisions.


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                  THIS INDENTURE, dated as of January 31, 1997, between Trenwick
Group Inc., a corporation existing under the laws of the State of Delaware
(hereinafter sometimes called the "Company"), and The Chase Manhattan Bank, a
New York banking corporation, as trustee (hereinafter sometimes called the
"Trustee").

                              W I T N E S S E T H :

                  In consideration of the premises, and the purchase of the
Securities (as defined herein) by the holders thereof, the Company covenants and
agrees with the Trustee for the equal and proportionate benefit of the
respective holders from time to time of the Securities, as follows:


                                   ARTICLE I.

                                   DEFINITIONS

SECTION 1.01. Definitions.

                  The terms defined in this Section 1.01 (except as herein
otherwise expressly provided or unless the context otherwise requires) for all
purposes of this Indenture shall have the respective meanings specified in this
Section 1.01. All other terms used in this Indenture which are defined in the
Trust Indenture Act of 1939 (as defined below) or which are by reference therein
defined in the Securities Act (as defined below), shall (except as herein
otherwise expressly provided or unless the context otherwise requires) have the
meanings assigned to such terms in the Trust Indenture Act of 1939 and in the
Securities Act as in force at the date of this Indenture as originally executed.
The following terms have the meanings given to them in the Declaration: (i)
Clearing Agency; (ii) Delaware Trustee; (iii) Property Trustee; (iv)
Administrative Trustees; (v) Direct Action; (vi) Purchase Agreement and (vii)
Initial Purchaser. All accounting terms used herein and not expressly defined
shall have the meanings assigned to such terms in accordance with generally
accepted accounting principles and the term "generally accepted accounting
principles" means such accounting principles as are generally accepted at the
time of any computation. The words "herein", "hereof" and "hereunder" and other
words of similar import refer to this Indenture as a whole and not to any
particular Article, Section or other subdivision. Headings are used for
convenience of reference only and do not affect interpretation. The singular
includes the plural and vice versa.

                  "Additional Interest" shall have the meaning set forth in the
Registration Rights Agreement.

                  "Additional Sums" shall have the meaning set forth in Section
2.06(c).

                  "Adjusted Treasury Rate" shall mean, with respect to any
prepayment date pursuant to Section 14.01, the rate per annum equal to the
semi-annual equivalent yield to maturity of the Comparable Treasury
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Issue, assuming a price for the Comparable Treasury Issue (expressed as a
percentage of its principal amount) equal to the Comparable Treasury Price for
such prepayment date plus (i) 1.25% if such prepayment date occurs on or prior
to February 1, 1998 and (ii) 0.50% in all other cases.

                  "Adverse Tax Consequence" shall have the meaning set forth in
the definition of Tax Event.

                  "Affiliate" shall have the same meaning as given to that term
in Rule 405 under the Securities Act or any successor rule thereunder.

                  "Authenticating Agent" shall mean any agent or agents of the
Trustee which at the time shall be appointed and acting pursuant to Section
6.14.

                  "Bankruptcy Law" shall mean Title 11, U.S. Code, or any
similar federal or state law for the relief of debtors.

                  "Board of Directors" shall mean either the Board of Directors
of the Company or any duly authorized committee of the Board of Directors.

                  "Board Resolution" shall mean a copy of a resolution certified
by the Secretary or an Assistant Secretary of the Company to have been duly
adopted by the Board of Directors and to be in full force and effect on the date
of such certification, and delivered to the Trustee.

                  "Business Day" shall mean, with respect to any series of
Securities, any day other than a Saturday or a Sunday or a day on which banking
institutions in The City of New York, New York are authorized or required by law
or executive order to close.

                  "Capital Securities" shall mean Subordinated Capital Income
Securities representing undivided beneficial interests in the assets of Trenwick
Capital Trust I which rank pari passu with the Common Securities issued by
Trenwick Capital Trust I; provided, however, that if an Event of Default has
occurred and is continuing, no payments in respect of Distributions on, or
payments upon liquidation, prepayment or otherwise with respect to, the Common
Securities shall be made until the holders of the Capital Securities shall be
paid in full the Distributions and the liquidation, prepayment and other
payments to which they are entitled. References to "Capital Securities" shall
include collectively any Initial Capital Securities and Exchange Capital
Securities.

                  "Capital Securities Guarantee" shall mean any guarantee that
the Company may enter into with Trenwick Capital Trust I or other Persons, as
such guarantee may be modified, amended or supplemented from time to time, that
operates directly or indirectly for the benefit of holders of Capital Securities
of Trenwick Capital Trust I and shall include an Initial Capital Securities
Guarantee and an Exchange Capital Securities Guarantee with respect to the
Initial Capital Securities and the Exchange Capital Securities, respectively.

                  "Commission" shall mean the Securities and Exchange
Commission, as from time to time constituted, created under the Exchange Act, or
if at any time after the execution of this Indenture such Commission is not
existing and performing the duties now assigned to it under the Trust Indenture
Act, then the body performing such duties at such time.


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                  "Common Securities" shall mean undivided beneficial interests
in the assets of Trenwick Capital Trust I which rank pari passu with Capital
Securities issued by Trenwick Capital Trust I; provided, however, that if an
Event of Default has occurred and is continuing, no payments in respect of
Distributions on, or payments upon liquidation, prepayment or otherwise with
respect to, the Common Securities shall be made until the holders of the Capital
Securities shall be paid in full the Distributions and the liquidation,
prepayment and other payments to which they are entitled.

                  "Common Securities Guarantee" shall mean any guarantee that
the Company may enter into with any Person or Persons that operates directly or
indirectly for the benefit of holders of Common Securities, as such guarantee
may be modified, amended or supplemented from time to time.

                  "Common Stock" shall mean the Common Stock, par value $0.10
per share, of the Company or any other class of stock resulting from changes or
reclassifications of such Common Stock consisting solely of changes in par
value, or from par value to no par value, or from no par value to par value.

                  "Company" shall mean Trenwick Group Inc., a Delaware
corporation, and, subject to the provisions of Article X, shall include its
successors and assigns.

                  "Company Request" or "Company Order" shall mean a written
request or order signed in the name of the Company by the Chairman, a Vice
Chairman, the Chief Executive Officer, the President, a Vice President (however
designated), the Secretary or an Assistant Secretary of the Company, and
delivered to the Trustee.

                  "Comparable Treasury Issue" shall mean the United States
Treasury security selected by the Quotation Agent as having a maturity
comparable to the Remaining Life that would be utilized, at the time of
selection and in accordance with customary financial practice, in pricing new
issues of corporate debt securities of comparable maturity to the Remaining
Life.

                  "Comparable Treasury Price" shall mean, with respect to any
prepayment date pursuant to Section 14.01, (i) the average of the bid and asked
prices for the Comparable Treasury Issue (expressed in each case as a percentage
of its principal amount) on the third Business Day preceding such prepayment
date, as set forth in the daily statistical release (or any successor release)
published by the Federal Reserve Bank of New York and designated "Composite 3:30
p.m. Quotations for U.S. Government Securities" or (ii) if such release (or any
successor release) is not published or does not contain such prices on such
Business Day, (A) the average of the Reference Treasury Dealer Quotations for
such prepayment date, after excluding the highest and lowest such Reference
Treasury Dealer Quotations, or (B) if the Trustee obtains fewer than three such
Reference Treasury Dealer Quotations, the average of all such Quotations.

                  "Compounded Interest" shall have the meaning set forth in
Section 16.01.

                  "Conditional Tax Redemption Event" shall have the meaning set
forth in Section 14.06.



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                  "Custodian" shall mean any receiver, trustee, assignee,
liquidator, or similar official under any Bankruptcy Law.

                  "Declaration" shall mean the Amended and Restated Declaration
of Trust of Trenwick Capital Trust I, dated as of January 31, 1997, among the
Trustees (as defined therein) and the Company, as Sponsor, as such Declaration
may be modified, amended or supplemented from time to time.

                  "Default" shall mean any event, act or condition that with
notice or lapse of time, or both, would constitute an Event of Default.

                  "Deferred Interest" shall have the meaning set forth in
Section 16.01.

                  "Definitive Securities" shall mean those Securities issued in
fully registered certificated form but not Securities issued in global form.

                  "Depositary" shall mean, with respect to Securities of any
series, for which the Company shall determine that such Securities will be
issued as a Global Security, The Depository Trust Company, New York, New York,
another clearing agency, or any successor registered as a clearing agency under
the Exchange Act or other applicable statute or regulation, which, in each case,
shall be designated by the Company pursuant to Section 2.05(d).

                  "Dissolution Event" shall mean the liquidation of the Trust
pursuant to the Declaration, and the distribution of the Securities held by the
Property Trustee to the holders of the Trust Securities issued by the Trust pro
rata in accordance with the Declaration.

                  "Event of Default" shall mean any event specified in Section
5.01, continued for the period of time, if any, and after the giving of the
notice, if any, therein designated.

                  "Exchange Act" shall mean the Securities Exchange Act of 1934,
as amended.

                  "Exchange Capital Securities" shall mean 8.82% Capital
Securities (liquidation amount $1,000 per security) of Trenwick Capital Trust I,
issued pursuant to an Exchange Offer (including any Private Exchange (as defined
in the Registration Rights Agreement)).

                  "Exchange Capital Securities Guarantee" shall mean the Capital
Securities Guarantee Agreement, issued pursuant to an Exchange Offer (including
any Private Exchange (as defined in the Registration Rights Agreement)).

                  "Exchange Offer" shall mean the offer that may be made
pursuant to the Registration Rights Agreement (i) by the Company to exchange
Exchange Securities for Initial Securities and to exchange an Exchange Capital
Securities Guarantee for an Initial Capital Securities Guarantee and (ii) by
Trenwick Capital Trust I to exchange Exchange Capital Securities for Initial
Capital Securities.

                  "Exchange Securities" shall mean the Company's 8.82% Junior
Subordinated Deferrable Interest Debentures due February 1, 2037, issued
pursuant to an Exchange Offer


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   11
(including any Private Exchange (as defined in the Registration Rights
Agreement)), as authenticated and issued under this Indenture.

                  "Extension Period" shall have the meaning set forth in Section
16.01.

                  "Global Securities" shall mean those Securities issued in
global form, and "Global Security" shall mean the Security executed by the
Company and delivered by the Trustee to the Depositary or pursuant to the
Depositary's instruction, all in accordance with the Indenture, which shall be
registered in the name of the Depositary or its nominee.

                  "Indebtedness for Money Borrowed" shall mean any obligation
of, or any obligation guaranteed by, the Company for the repayment of borrowed
money, whether or not evidenced by bonds, debentures, notes or other written
instruments.

                  "Indenture" shall mean this instrument as originally executed
or as it may from time to time be modified, amended or supplemented by one or
more indentures supplemental hereto entered into pursuant to the applicable
provision hereof including, for all purposes of this instrument and any
supplemental indenture, the provisions of the Trust Indenture Act of 1939 that
are deemed to be a part of and govern this instrument and any such supplemental
indenture, respectively.

                  "Initial Capital Securities" shall mean 8.82% Subordinated
Capital Income Securities (liquidation amount $1,000 per security) of Trenwick
Capital Trust, as initially issued under the Declaration.

                  "Initial Capital Securities Guarantee" shall mean the Capital
Securities Guarantee Agreement, dated as of January 31, 1997, between the
Company and The Chase Manhattan Bank, as guarantee trustee.

                  "Initial Securities" shall mean the Company's 8.82% Junior
Subordinated Deferrable Interest Debentures due February 1, 2037, as initially
authenticated and issued under this Indenture.

                  "Investment Company Act" shall mean the Investment Company Act
of 1940, as amended.

                  "Investment Company Event" shall mean that the Company shall
have received an opinion of an independent counsel experienced in practice under
the Investment Company Act, to the effect that, as a result of the occurrence of
a change in law or regulation or a change in interpretation or application of
law or regulation by any legislative body, court, governmental agency or
regulatory authority (a "Change in Investment Company Act Law"), there is more
than an insubstantial risk that Trenwick Capital Trust I is or will be
considered an "investment company" which is required to be registered under the
Investment Company Act, which Change in Investment Company Act Law becomes
effective on or after January 31, 1997.

                  "Interest Payment Date" shall have the meaning set forth in
Section 2.06.


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                  "Non Book-Entry Capital Securities" shall have the meaning set
forth in Section 2.05.

                  "Officers" shall mean any of the Chairman, a Vice Chairman,
the Chief Executive Officer, the President, a Vice President (however
designated), the Secretary or an Assistant Secretary of the Company.

                  "Officers' Certificate" shall mean a certificate signed by (i)
the Chairman of the Board of Directors, a Vice Chairman of the Board of
Directors, the President, the Chief Executive Officer or a Vice President, and
(ii) the Chief Financial Officer, the Chief Accounting Officer, the Treasurer,
an Assistant Treasurer, the Secretary or an Assistant Secretary, and delivered
to the Trustee, which certificate shall comply with the provisions of Section
13.06 hereof.

                  "Opinion of Counsel" shall mean a written opinion of legal
counsel who is reasonably acceptable to the Trustee, which opinion shall comply
with the provisions of Section 13.06 hereof.

                  "Optional Prepayment Price" shall have the meaning set forth
in Section 14.02.

                  "Other Debentures" shall mean only those junior subordinated
debentures issued by the Company from time to time and sold to trusts to be
established by the Company (if any), which are in each case similar to Trenwick
Capital Trust I.

                  "Other Guarantees" shall mean all guarantees to be issued by
the Company with respect to capital securities (if any) and issued to other
trusts, or to any trustee of such trusts or other entities affiliated with the
Company that are financing vehicles of the Company.

                  The term "outstanding" when used with reference to Securities,
shall, subject to the provisions of Section 7.04, mean, as of any particular
time, all Securities authenticated and delivered by the Trustee or the
Authenticating Agent under this Indenture, except

                  (a) Securities theretofore cancelled by the Trustee or the
         Authenticating Agent or delivered to the Trustee for cancellation;

                  (b) Securities, or portions thereof, for the payment or
         prepayment of which moneys in the necessary amount shall have been
         deposited in trust with the Trustee or with any paying agent (other
         than the Company) or shall have been set aside and segregated in trust
         by the Company (if the Company shall act as its own paying agent);
         provided, that, if such Securities, or portions thereof, are to be
         prepaid prior to maturity thereof, notice of such prepayment shall have
         been given as in Article XIV provided or provision satisfactory to the
         Trustee shall have been made for giving such notice; and

                  (c) Securities in lieu of or in substitution for which other
         Securities shall have been authenticated and delivered pursuant to the
         terms of Section 2.08 unless proof satisfactory to the Company and the
         Trustee is presented that any such Securities are held by bona fide
         holders in due course.


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   13
                  "Person" shall mean any individual, corporation, estate,
partnership, joint venture, association, joint-stock company, limited liability
company, trust, unincorporated organization or government or any agency or
political subdivision thereof.

                  "Predecessor Security" of any particular Security shall mean
every previous Security evidencing all or a portion of the same debt as that
evidenced by such particular Security; and, for the purposes of this definition,
any Security authenticated and delivered under Section 2.08 in lieu of a lost,
destroyed or stolen Security shall be deemed to evidence the same debt as the
lost, destroyed or stolen Security.

                  "Prepayment Price" shall mean the Optional Prepayment Price or
the Special Event Prepayment Price, as the context requires.

                  The term "principal office of the Trustee", or other similar
term, shall mean the principal office of the Trustee, at which at any particular
time its corporate trust business shall be administered and which office is, at
the time of execution of this Indenture, located at 450 West 33rd Street, New
York, New York 10001.

                  "Property Trustee" shall have the same meaning as set forth in
the Declaration.

                  "Purchase Agreement" shall mean the Purchase Agreement dated
January 28, 1997 among the Company, Trenwick Capital Trust I and the Initial
Purchaser as defined therein.

                  "Quotation Agent" shall mean the Reference Treasury Dealer.

                  "Reference Treasury Dealer" shall mean (i) Lehman Brothers
Inc. and its successors; provided, however, that if the foregoing shall cease to
be a primary U.S. Government securities dealer in New York City (a "Primary
Treasury Dealer"), the Company shall substitute therefor another Primary
Treasury Dealer, or (ii) any other Primary Treasury Dealer selected by the
Trustee after consultation with the Company.

                  "Reference Treasury Dealer Quotations" shall mean, with
respect to each Quotation Agent and any prepayment date pursuant to Section
14.01, the average, as determined by the Trustee, of the bid and asked prices
for the Comparable Treasury Issue (expressed in each case as a percentage of its
principal amount) quoted to the Trustee by such Quotation Agent at 5:00 p.m. New
York City time, on the third Business Day preceding such prepayment date.

                  "Registration Rights Agreement" shall mean the Registration
Rights Agreement, dated as of January 31, 1997, by and among the Company,
Trenwick Capital Trust I and the Initial Purchaser, as such agreement may be
amended, modified or supplemented from time to time.

                  "Regular Record Date" with respect to the payment of interest
installments on the Securities, shall mean the fifteenth day preceding the
relevant Interest Payment Date. If a Regular Record Date is not a Business Day,
such Regular Record Date shall be deemed to be the next preceding Business Day.



                                       7
   14
                  "Remaining Life" shall mean the period from the prepayment
date pursuant to Section 14.01 to the Stated Maturity.

                  "Responsible Officer," when used with respect to the Trustee,
shall mean any officer or assistant officer of the Trustee assigned by the
Trustee to administer this Indenture and also means, with respect to a
particular corporate trust matter, any other officer to whom such matter is
referred because of his knowledge of and familiarity with the particular
subject.

                  "Restricted Security" shall mean Securities that bear or are
required to bear the legends set forth in Exhibit A hereto.

                  "Rule 144A" shall mean Rule 144A under the Securities Act, as
such Rule may be amended from time to time, or under any similar rule or
regulation hereafter adopted by the Commission.

                  "Securities" shall mean, collectively, the Initial Securities
and the Exchange Securities.

                  "Securities Act" shall mean the Securities Act of 1933, as
amended.

                  "Securityholder", "holder of Securities", or other similar
terms, shall mean any Person in whose name at the time a particular Security is
registered on the register kept by the Company or the Trustee for that purpose
in accordance with the terms hereof.

                  "Security Register" shall mean (i) prior to a Dissolution
Event, the list of holders kept by a Securities registrar or provided to the
Trustee pursuant to Section 4.01, as the case may be and (ii) following a
Dissolution Event, any security register maintained by a security registrar for
the securities appointed by the Company following the execution of a
supplemental indenture providing for transfer procedures as provided for in
Section 2.07(a).

                  "Senior Indebtedness" shall mean with respect to the Company,
(i) the principal, premium, if any, and interest in respect of (A) Indebtedness
for Money Borrowed and (B) indebtedness evidenced by securities, notes,
debentures, bonds or other similar instruments issued by the Company, (ii) all
capital lease obligations of the Company, (iii) all obligations of the Company
issued or assumed as the deferred purchase price of property, all conditional
sale obligations of the Company and all obligations of the Company under any
conditional sale or title retention agreement (but excluding trade accounts
payable arising in the ordinary course of business), (iv) all obligations,
contingent or otherwise of the Company in respect of any letter of credit,
banker's acceptance, security purchase facilities or similar credit transaction,
(v) all obligations in respect of interest rate swap, cap or other agreements,
interest rate future or option contracts, currency swap agreements, currency
future or option contracts and other similar agreements, (vi) all obligations of
the type referred to in clauses (i) through (v) above of other persons for the
payment of which the Company is responsible or liable as obligor, guarantor or
otherwise and (vii) all obligations of the type referred to in clauses (i)
through (vi) above of other persons secured by any lien on any property or asset
of the Company (whether or not such obligation is assumed by the Company),
except for (1) any such indebtedness that is by its terms subordinated to or
pari passu with the Junior Subordinated Debentures and (2) any indebtedness
between or among the Company or its affiliates, including all other debt
securities and guarantees in respect of those debt securities issued to (a) any



                                       8
   15
other trust affiliated with the Company and similar to Trenwick Capital Trust I
or a trustee of such trust and (b) any other trust, or of a trustee of such
trust, or of a partnership or other entity affiliated with the Company that is a
financing vehicle of the Company (a "financing entity") in connection with the
issuance by such a financing entity of preferred securities or other securities
that rank pari passu with, or junior to, the Capital Securities. Such Senior
Indebtedness shall continue to be Senior Indebtedness and be entitled to the
benefits of the subordination provisions irrespective of any amendment,
modification or waiver of any term of such Senior Indebtedness.

                  "Special Event" shall mean either an Investment Company Event
or a Conditional Tax Redemption Event, as the case may be.

                  "Special Event Prepayment Price" shall mean, with respect to
any prepayment of the Securities pursuant to Section 14.01 hereof, an amount in
cash equal to the greater of (i) 100% of the principal amount to be prepaid or
(ii) the sum, as determined by a Quotation Agent, of the present values of the
remaining scheduled payments of principal and interest thereon to February 1,
2007, the first day on which any Security is subject to optional prepayment,
discounted to the prepayment date on a semi-annual basis (assuming a 360-day
year consisting of twelve 30-day months and, for any period less than 6 months,
the actual months elapsed and the actual days elapsed in a partial month in such
period) at the Adjusted Treasury Rate plus, in each case, accrued and unpaid
interest thereon, including Compounded Interest and Additional Interest, and
Additional Sums, if any, to the date of such prepayment.

                  "Stated Maturity" shall mean February 1, 2037, or such other
date to which the maturity of the Securities is changed pursuant to the right of
the Company to shorten the stated maturity pursuant to the provisions of Section
14.06.

                  "Subsidiary" shall mean with respect to any Person, (i) any
corporation at least a majority of the outstanding voting stock of which is
owned, directly or indirectly, by such Person or by one or more of its
Subsidiaries, or by such Person and one or more of its Subsidiaries, (ii) any
general partnership, joint venture or similar entity, at least a majority of
whose outstanding partnership or similar interests shall at the time be owned by
such Person, or by one or more of its Subsidiaries, or by such Person and one or
more of its Subsidiaries and (iii) any limited partnership of which such Person
or any of its Subsidiaries is a general partner. For the purposes of this
definition, "voting stock" means shares, interests, participations or other
equivalents in the equity interest (however designated) in such Person having
ordinary voting power for the election of a majority of the directors (or the
equivalent) of such Person, other than shares, interests, participations or
other equivalents having such power only by reason of the occurrence of a
contingency.

                  "Tax Event" shall mean the receipt by Trenwick Capital Trust I
and the Company of an opinion of counsel experienced in such matters to the
effect that, as a result of any amendment to, or change (including any announced
prospective change) in, the laws or any regulations thereunder of the United
States or any political subdivision or taxing authority thereof or therein or as
a result of any official administrative pronouncement or judicial decision
interpreting or applying such laws or regulations, which amendment or change is
effective or which pronouncement or decision is announced on or after January
31, 1997, or, as a result of a final determination, as evidenced by the
execution of a Form 870 AD, arising from an audit or examination by the Internal
Revenue Service, there is more than an insubstantial risk that (i) Trenwick
Capital Trust I is, or will be within 90 days of the date of


                                       9
   16
such opinion, subject to United States federal income tax with respect to income
received or accrued on the Securities, (ii) interest payable by the Company on
the Securities is not, or within 90 days of the date of such opinion, will not
be, deductible by the Company, in whole or in part, for United States federal
income tax purposes, or (iii) Trenwick Capital Trust I is, or will be within 90
days of the date of such opinion, subject to more than a de minimis amount of
other taxes, duties or other governmental charges (each of the circumstances
referred to in clauses (i), (ii) and (iii) being referred to herein as an
"Adverse Tax Consequence").

                  "Tax Event Maturity Shortening" shall have the meaning
specified in Section 14.06.

                  "Trenwick Capital Trust I" or "Trust" shall mean Trenwick
Capital Trust I, a statutory business trust organized under the laws of the
State of Delaware for the exclusive purposes of (i) issuing and selling the
Trust Securities, (ii) effecting the Exchange Offer or filing a Shelf
Registration Statement (as defined in the Declaration), (iii) using the proceeds
from the sale of Trust Securities to acquire the Junior Subordinated Debentures,
(iv) making Distributions (as defined in the Declaration) to holders of the
Trust Securities as provided in the Declaration and (v) engaging in only those
other activities necessary, advisable or incidental thereto (such as registering
the transfer of the Trust Securities).

                  "Trustee" shall mean the Person identified as "Trustee" in the
first paragraph hereof, and, subject to the provisions of Article VI hereof,
shall also include its successors and assigns as Trustee hereunder. The term
"Trustee" as used with respect to a particular series of the Securities shall
mean the trustee with respect to that series.

                  "Trust Indenture Act of 1939" shall mean the Trust Indenture
Act of 1939 as in force at the date of execution of this Indenture, except as
provided in Section 9.03; provided, however, that in the event the Trust
Indenture Act of 1939 is amended after such date, "Trust Indenture Act of 1939"
means, to the extent required by any such amendment, the Trust Indenture Act of
1939 as so amended.

                  "Trust Securities" shall mean the Capital Securities and the
Common Securities, collectively.

                  "U.S. Government Obligations" shall mean securities that are
(i) direct obligations of the United States of America for the payment of which
its full faith and credit is pledged or (ii) obligations of a Person controlled
or supervised by and acting as an agency or instrumentality of the United States
of America the payment of which is unconditionally guaranteed as a full faith
and credit obligation by the United States of America, which, in either case
under clauses (i) or (ii) are not callable or prepayable at the option of the
issuer thereof, and shall also include a depository receipt issued by a bank or
trust company as custodian with respect to any such U.S. Government Obligation
or a specific payment of interest on or principal of any such U.S. Government
Obligation held by such custodian for the account of the holder of a depository
receipt, provided, that (except as required by law) such custodian is not
authorized to make any deduction from the amount payable to the holder of such
depository receipt from any amount received by the custodian in respect of the
U.S. Government Obligation or the specific payment of interest on or principal
of the U.S. Government Obligation evidenced by such depository receipt.



                                       10
   17
                                   ARTICLE II.

                                   SECURITIES

SECTION 2.01. Forms Generally.

                  The Securities and the Trustee's certificate of authentication
shall be substantially in the form set forth in Exhibit A hereto, the terms of
which are incorporated in and made a part of this Indenture. The Securities may
have notations, legends or endorsements required by law, stock exchange rule,
agreements to which the Company is subject or usage. Each Security shall be
dated the date of its authentication. The Securities shall be issued in
denominations of $1,000 and integral multiples thereof.

SECTION 2.02. Execution and Authentication.

                  Two Officers shall sign the Securities for the Company by
manual or facsimile signature. If an Officer whose signature is on a Security no
longer holds that office at the time the Security is authenticated, the Security
shall nevertheless be valid.

                  A Security shall not be valid until authenticated by the
manual signature of the Trustee. The signature of the Trustee shall be
conclusive evidence that the Security has been authenticated under this
Indenture. The form of Trustee's certificate of authentication to be borne by
the Securities shall be substantially as set forth in Exhibit A hereto.

                  The Trustee shall, upon receipt of a Company Order and such
other documents as may be required by Section 13.06, authenticate for original
issue up to, and the aggregate principal amount of Securities outstanding at any
time may not exceed, one hundred thirteen million four hundred three thousand
U.S. dollars ($113,403,000) aggregate principal amount of the Securities; except
as provided in Sections 2.07, 2.08, 2.10 and 14.05 hereof. The Company Order
shall specify the amount of Securities to be authenticated and the date on which
such Securities are to be authenticated. The series of Securities to be
initially issued hereunder shall be the Initial Securities.


                                       11
   18
SECTION 2.03. Form and Payment.

                  Except as provided in Section 2.05, the Securities shall be
issued in fully registered certificated form without interest coupons. Principal
of and premium, if any, and interest on the Securities issued in certificated
form will be payable, the transfer of such Securities will be registrable and
such Securities will be exchangeable for Securities bearing identical terms and
provisions at the office or agency of the Company maintained for such purpose
under Section 3.02; provided, however, that payment of interest with respect to
Securities may be made at the option of the Company (i) by check mailed to the
holder at such address as shall appear in the Security Register or (ii) by
transfer to an account maintained by the Person entitled thereto, provided, that
proper transfer instructions have been received in writing by the relevant
record date. Notwithstanding the foregoing, so long as the holder of any
Securities is the Property Trustee, the payment of the principal of and premium,
if any, and interest (including Compounded Interest and Additional Interest, if
any) and any Additional Sums on such Securities held by the Property Trustee
will be made at such place and to such account as may be designated by the
Property Trustee.

SECTION 2.04. Legends.

                  (a) Except as permitted by subsection (b) of this Section 2.04
or as otherwise determined by the Company in accordance with applicable law,
each Security shall bear the applicable legends relating to restrictions on
transfer pursuant to the securities laws in substantially the form set forth on
Exhibit A hereto.

                  (b) The Company shall issue and, upon receipt of a Company
Order, the Trustee shall authenticate Exchange Securities in exchange for
Initial Securities accepted for exchange in the Exchange Offer, which Exchange
Securities shall not bear the legends required by subsection (a) above, in each
case unless the Trustee is notified in writing that the holder of such Initial
Securities is either (A) a broker-dealer who purchased such Initial Securities
directly from the Company for resale pursuant to Rule 144A or any other
available exemption under the Securities Act, (B) a Person participating in the
distribution of the Initial Securities or (C) a Person who is an affiliate (as
defined in Rule 144 under the Securities Act) of the Company or unless the
Registration Rights Agreement shall require otherwise.

SECTION 2.05. Global Security.

                  (a) In connection with a Dissolution Event,

                           (i) if any Capital Securities are held in book-entry
         form, the global securities representing such Capital Securities shall
         be presented to the Trustee (if an arrangement with the Depositary has
         been maintained) by the Property Trustee in exchange for one or more
         Global Securities (as may be required pursuant to Section 2.07) in an
         aggregate principal amount equal to the aggregate principal amount of
         all such outstanding Securities, to be registered in the name of the
         Depositary, or its nominee, and delivered by the Trustee to the
         Depositary for crediting to the accounts of its participants pursuant
         to the instructions of the Administrative Trustees; the Company upon
         any such presentation shall execute one or more Global Securities in
         such aggregate principal amount and deliver the same, together with a
         Company Order,


                                       12
   19
         to the Trustee for authentication and delivery in accordance with this
         Indenture; and payments on the Securities issued as a Global Security
         will be made to the Depositary; and

                           (ii) if any Capital Securities are held in
         certificated form, the related Definitive Securities may be presented
         to the Trustee by the Property Trustee and any Capital Security
         certificate which represents Capital Securities other than Capital
         Securities in book-entry form ("Non Book-Entry Capital Securities")
         will be deemed to represent beneficial interests in Securities
         presented to the Trustee by the Property Trustee having an aggregate
         principal amount equal to the aggregate liquidation amount of the Non
         Book-Entry Capital Securities until such Capital Security certificates
         are presented to the Security registrar for registration of transfer or
         reissuance, at which time such Capital Security certificates will be
         cancelled and a Security, registered in the name of the holder of the
         Capital Security certificate, with an aggregate principal amount equal
         to the aggregate liquidation amount of the Capital Security certificate
         cancelled, will be executed by the Company and delivered to the Trustee
         for authentication and delivery in accordance with this Indenture. Upon
         the issuance of such Securities, Securities with an equivalent
         aggregate principal amount that were presented by the Property Trustee
         to the Trustee will be deemed to have been cancelled.

                  (b) The Global Securities shall represent the aggregate amount
of outstanding Securities from time to time endorsed thereon; provided, that the
aggregate amount of outstanding Securities represented thereby may from time to
time be reduced or increased, as appropriate, to reflect exchanges and
prepayments. Any endorsement of a Global Security to reflect the amount of any
increase or decrease in the amount of outstanding Securities represented thereby
shall be made by the Trustee, in accordance with applicable procedures
established by the Depositary.

                  (c) The Global Securities may be transferred, in whole but not
in part, only to another nominee of the Depositary, or to a successor Depositary
selected or approved by the Company or to a nominee of such successor
Depositary.

                  (d) If at any time the Depositary notifies the Company that it
is unwilling or unable to continue as Depositary or the Depositary has ceased to
be a clearing agency registered under the Exchange Act, and a successor
Depositary is not appointed by the Company within 90 days after the Company
receives such notice or becomes aware of such condition, as the case may be, the
Company will execute, and the Trustee, upon written notice from the Company,
will authenticate and make available for delivery Definitive Securities, in
authorized denominations and in an aggregate principal amount equal to the
principal amount of the Global Security in exchange for such Global Security. If
there is an Event of Default, the Depositary shall have the right to exchange
the Global Securities for Definitive Securities. In addition, the Company may at
any time determine that the Securities shall no longer be represented by a
Global Security. In the event of such an Event of Default or such a
determination, the Company shall execute, and subject to Section 2.07, the
Trustee, upon receipt of an Officers' Certificate evidencing such determination
by the Company, will authenticate and make available for delivery Definitive
Securities, in authorized denominations and in an aggregate principal amount
equal to the principal amount of the Global Security in exchange for such Global
Security. Upon the exchange of the Global Security for such


                                       13
   20
Definitive Securities, in authorized denominations, the Global Security shall be
cancelled by the Trustee. Such Definitive Securities issued in exchange for the
Global Security shall be registered in such names and in such authorized
denominations as the Depositary, pursuant to instructions from its direct or
indirect participants or otherwise, shall instruct the Trustee. The Trustee
shall deliver such Definitive Securities to the Depositary for delivery to the
Persons in whose names such Definitive Securities are so registered.

SECTION 2.06. Interest.

                  (a) Each Security will bear interest at the rate of 8.82% per
annum (the "Coupon Rate") from the most recent date to which interest has been
paid or, if no interest has been paid, from January 31, 1997, until the
principal thereof becomes due and payable, and on any overdue principal and
premium, if any, and (to the extent that payment of such interest is enforceable
under applicable law) on any overdue installment of interest at the Coupon Rate,
compounded semi-annually, payable (subject to the provisions of Article XVI)
semi-annually in arrears on February 1 and August 1 of each year (each, an
"Interest Payment Date") commencing on August 1, 1997, to the Person in whose
name such Security or any predecessor Security is registered on the books of the
Company, at the close of business on the Regular Record Date for such interest
installment.

                  (b) Interest will be computed on the basis of a 360-day year
consisting of twelve 30-day months and, for any period less than six months, the
actual months elapsed and the actual days elapsed in a partial month in such
period. In the event that any Interest Payment Date falls on a day that is not a
Business Day, then payment of interest payable on such date will be made on the
next succeeding day which is a Business Day (and without any interest or other
payment in respect of any such delay), with the same force and effect as if made
on such date.

                  (c) During such time as the Property Trustee is the holder of
any Securities, the Company shall pay any additional amounts on the Securities
as may be necessary in order that the amount of Distributions then due and
payable by Trenwick Capital Trust I on the outstanding Trust Securities shall
not be reduced as a result of any additional taxes, duties and other
governmental charges to which the Trust has become subject as a result of a Tax
Event ("Additional Sums").

SECTION 2.07. Transfer and Exchange.

                  (a) Transfer Restrictions. The Initial Securities, and those
Exchange Securities with respect to which any Person described in Section
2.04(b)(A), (B) or (C) is the beneficial owner, may not be transferred except in
compliance with any legend contained in Exhibit A unless otherwise determined by
the Company in accordance with applicable law. Upon any distribution of the
Securities following a Dissolution Event, the Company and the Trustee shall
enter into a supplemental indenture pursuant to Section 9.01 to provide for the
transfer restrictions and procedures with respect to the Securities
substantially similar to those contained in the Declaration to the extent
applicable in the circumstances existing at such time.

                  (b) General Provisions Relating to Transfers and Exchanges. To
permit registrations of transfers and exchanges, the Company shall execute
Definitive Securities and Global Securities at the Trustee's request. All
Definitive Securities and Global Securities


                                       14
   21
issued upon any registration of transfer or exchange of Definitive Securities or
Global Securities shall be the valid obligations of the Company, evidencing the
same debt, and entitled to the same benefits under this Indenture, as the
Definitive Securities or Global Securities surrendered upon such registration of
transfer or exchange.

                  No service charge shall be made to a holder for any
registration of transfer or exchange, but the Company may require payment of a
sum sufficient to cover any transfer tax or similar governmental charge payable
in connection therewith.

                  The Company shall not be required to (i) issue, register the
transfer of or exchange Securities during a period beginning at the opening of
business 30 days before the day of mailing of a notice of prepayment or any
notice of selection of Securities for prepayment under Article XIV hereof and
ending at the close of business on the day of such mailing; or (ii) register the
transfer of or exchange any Security so selected for prepayment in whole or in
part, except the unprepaid portion of any Security being prepaid in part.

                  Prior to due presentment for the registration of a transfer of
any Security, the Trustee, any agent and the Company may deem and treat the
Person in whose name any Security is registered as the absolute owner of such
Security for the purpose of receiving payment of principal of and premium, if
any, and interest on such Securities, and neither the Trustee, any agent nor the
Company shall be affected by notice to the contrary.

                  (c) Exchange of Initial Securities for Exchange Securities.
The Initial Securities may be exchanged for Exchange Securities pursuant to the
terms of the Exchange Offer. The Trustee shall make the exchange as follows:

The Company shall present the Trustee with an Officers' Certificate certifying
the following:

                           (i) upon issuance of the Exchange Securities, the
         transactions contemplated by the Exchange Offer have been consummated;
         and

                           (ii) the principal amount of Initial Securities
         properly tendered in the Exchange Offer that are represented by a
         Global Security and the principal amount of Initial Securities properly
         tendered in the Exchange Offer that are represented by Definitive
         Securities, the name of each holder of such Definitive Securities, the
         principal amount at maturity properly tendered in the Exchange Offer by
         each such holder and the name and address to which Definitive
         Securities for Exchange Securities shall be registered and sent for
         each such holder.

                  The Trustee, upon receipt of (i) such Officers' Certificate,
(ii) an Opinion of Counsel (x) to the effect that the Exchange Securities have
been registered under Section 5 of the Securities Act and the Indenture, the
Declaration and the Capital Securities Guarantee have each been qualified under
the Trust Indenture Act of 1939 and (y) with respect to the matters set forth in
Section 3(p) of the Registration Rights Agreement and (iii) a Company Order,
shall authenticate (A) a Global Security for Exchange Securities in aggregate
principal amount equal to the aggregate principal amount of Initial Securities
represented by a Global Security indicated in such Officers' Certificate as
having been properly tendered and (B) Definitive Securities representing
Exchange Securities registered in the names of, and in the principal amounts
indicated in, such Officers' Certificate.



                                       15
   22
                  If the principal amount at Stated Maturity of the Global
Security for the Exchange Securities is less than the principal amount at Stated
Maturity of the Global Security for the Initial Securities, the Trustee shall
make an endorsement on such Global Security for the Initial Securities
indicating a reduction in the principal amount at maturity represented thereby.

                  The Trustee shall deliver such Definitive Securities for
Exchange Securities to the holders thereof as indicated in such Officers'
Certificate.

SECTION  2.08. Replacement Securities.

                  (a) If any mutilated Security is surrendered to the Trustee or
the Company, or the Trustee receives evidence to its satisfaction of the
destruction, loss or theft of any Security, the Company shall issue and the
Trustee shall authenticate a replacement Security if the Trustee's requirements
for replacements of Securities are met. An indemnity bond must be supplied by
the Securityholder that is sufficient in the judgment of the Trustee and the
Company to protect the Company, the Trustee or any authenticating agent from any
loss that any of them may suffer if a Security is replaced. The Company or the
Trustee may charge for its expenses in replacing a Security.

                  (b) Every replacement Security is an obligation of the Company
and shall be entitled to all of the benefits of this Indenture equally and
proportionately with all other Securities duly issued hereunder.

                  (c) The provisions of this Section 2.08 are exclusive and
shall preclude (to the extent lawful) all other rights and remedies with respect
to the replacement of mutilated, destroyed, lost or stolen Securities.

SECTION  2.09. Treasury Securities.

                  In determining whether the holders of the required principal
amount of Securities have concurred in any direction, waiver or consent,
Securities owned by the Company or any Affiliate of the Company shall be
considered as though not outstanding, except that for purposes of determining
whether the Trustee shall be protected in relying on any such direction, waiver
or consent, only Securities that the Trustee actually knows to be so owned shall
be so considered.

SECTION  2.10. Temporary Securities.

                  Pending the preparation of Definitive Securities, the Company
may execute, and upon Company Order the Trustee shall authenticate and make
available for delivery, temporary Securities that are printed, lithographed,
typewritten, mimeographed or otherwise reproduced, in any authorized
denomination, substantially of the tenor of the definitive Securities in lieu of
which they are issued and with such appropriate insertions, omissions,
substitutions and other variations as the officers executing such Securities may
determine, as conclusively evidenced by their execution of such Securities.




                                       16
   23
                  If temporary Securities are issued, the Company shall cause
Definitive Securities to be prepared without unreasonable delay. The Definitive
Securities shall be printed, typewritten, lithographed or engraved, or provided
by any combination thereof, or in any other manner permitted by the rules and
regulations of any applicable securities exchange, all as determined by the
Officers executing such Definitive Securities. After the preparation of
Definitive Securities, the temporary Securities shall be exchangeable for
Definitive Securities upon surrender of the temporary Securities at the office
or agency maintained by the Company for such purpose pursuant to Section 3.02
hereof, without charge to the Holder. Upon surrender for cancellation of any one
or more temporary Securities, the Company shall execute, and the Trustee shall
authenticate and make available for delivery, in exchange therefor the same
aggregate principal amount of Definitive Securities of authorized denominations.
Until so exchanged, the temporary Securities shall in all respects be entitled
to the same benefits under this Indenture as Definitive Securities.

SECTION 2.11. Cancellation.

                  The Company at any time may deliver Securities to the Trustee
for cancellation. The Trustee and no one else shall cancel all Securities
surrendered for registration of transfer, exchange, payment, replacement or
cancellation and shall destroy the cancelled Securities in accordance with its
normal practices (subject to the record retention requirement of the Exchange
Act) unless the Company directs that such cancelled Securities be returned to
it. The Company may not issue new Securities to replace Securities that have
been prepaid or paid or that have been delivered to the Trustee for
cancellation.

SECTION 2.12. Defaulted Interest.

                  Any interest on any Security that is payable, but is not
punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the holder
on the relevant Regular Record Date by virtue of having been such holder; and
such Defaulted Interest shall be paid by the Company, at its election, as
provided in clause (a) or clause (b) below:

                  (a) The Company may make payment of any Defaulted Interest on
         Securities to the Persons in whose names such Securities (or their
         respective Predecessor Securities) are registered at the close of
         business on a special record date for the payment of such Defaulted
         Interest, which shall be fixed in the following manner: the Company
         shall notify the Trustee in writing of the amount of Defaulted Interest
         proposed to be paid on each such Security and the date of the proposed
         payment, and at the same time the Company shall deposit with the
         Trustee an amount of money equal to the aggregate amount proposed to be
         paid in respect of such Defaulted Interest or shall make arrangements
         satisfactory to the Trustee for such deposit prior to the date of the
         proposed payment, such money when deposited to be held in trust for the
         benefit of the Persons entitled to such Defaulted Interest as in this
         clause provided. Thereupon the Trustee shall fix a special record date
         for the payment of such Defaulted Interest which shall not be more than
         30 nor less than 10 days prior to the date of the proposed payment and
         not less than 10 days after the receipt by the Trustee of the notice of
         the proposed payment. The Trustee shall promptly notify the Company of
         such special record date and, in the name and at the expense of the
         Company, shall cause notice of the proposed payment of such Defaulted
         Interest and


                                       17
   24
         the special record date therefor to be mailed, first class postage
         prepaid, to each Securityholder at his or her address as it appears in
         the Security Register, not less than 10 days prior to such special
         record date. Notice of the proposed payment of such Defaulted Interest
         and the special record date therefor having been mailed as aforesaid,
         such Defaulted Interest shall be paid to the Persons in whose names
         such Securities (or their respective Predecessor Securities) are
         registered on such special record date and shall be no longer payable
         pursuant to the following clause (b).

                  (b) The Company may make payment of any Defaulted Interest on
         any Securities in any other lawful manner not inconsistent with the
         requirements of any securities exchange on which such Securities may be
         listed, and upon such notice as may be required by such exchange, if,
         after notice given by the Company to the Trustee of the proposed
         payment pursuant to this clause, such manner of payment shall be deemed
         practicable by the Trustee.

SECTION  2.13. CUSIP Numbers.

                  The Company in issuing the Securities may use "CUSIP" numbers
(if then generally in use), and, if so, the Trustee shall use "CUSIP" numbers in
notices of prepayment as a convenience to Securityholders; provided, that any
such notice may state that no representation is made as to the correctness of
such numbers either as printed on the Securities or as contained in any notice
of a prepayment and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such prepayment shall not be affected
by any defect in or omission of such numbers. The Company will promptly notify
the Trustee of any change in the CUSIP numbers.

                                  ARTICLE III.

                       PARTICULAR COVENANTS OF THE COMPANY

SECTION  3.01. Payment of Principal, Premium and Interest.

                  The Company covenants and agrees for the benefit of the
Securityholders that it will duly and punctually pay or cause to be paid the
principal of and premium, if any, and interest on the Securities at the place,
at the respective times and in the manner provided herein. Except as provided in
Section 2.03, each installment of interest on the Securities may be paid by
mailing checks for such interest payable to the order of the Securityholder
entitled thereto, as it may appear in the Securities register. The Company
further covenants to pay any and all amounts including, without limitation,
Additional Interest, if any, on the dates and in the manner required under the
Registration Rights Agreement.

SECTION  3.02. Offices for Notices and Payments, etc.

                  So long as any of the Securities remains outstanding, the
Company will maintain in The City of New York, New York, an office or agency
where the Securities may be presented for payment, an office or agency where the
Securities may be presented for registration of transfer and for exchange as in
this Indenture provided and an office or agency where notices and demands to or
upon the Company in respect of the Securities or of this


                                       18
   25
Indenture may be served. The Company will give to the Trustee written notice of
the location of any such office or agency and of any change of location thereof.
Until otherwise designated from time to time by the Company in a notice to the
Trustee, any such office or agency for all of the above purposes shall be the
office or agency of The Chase Manhattan Bank, 450 West 33rd Street, 15th Floor,
New York, New York, 10001, Attention: Global Trust Services. In case the Company
shall fail to maintain any such office or agency in The City of New York, New
York, or shall fail to give such notice of the location or of any change in the
location thereof, presentations and demands may be made and notices may be
served at the principal corporate trust office of the Trustee.

                  In addition to any such office or agency, the Company may from
time to time designate one or more offices or agencies outside The City of New
York, New York where the Securities may be presented for registration of
transfer and for exchange in the manner provided in this Indenture, and the
Company may from time to time rescind such designation, as the Company may deem
desirable or expedient; provided, however, that no such designation or
rescission shall in any manner relieve the Company of its obligation to maintain
any such office or agency in the City of New York, New York, for the purposes
above mentioned. The Company will give to the Trustee prompt written notice of
any such designation or rescission thereof.

SECTION 3.03. Appointments to Fill Vacancies in Trustee's Office.

                  The Company, whenever necessary to avoid or fill a vacancy in
the office of Trustee, will appoint, in the manner provided in Section 6.10, a
Trustee, so that there shall at all times be a Trustee hereunder.

SECTION 3.04. Provision as to Paying Agent.

                  (a) If the Company shall appoint a paying agent other than the
Trustee with respect to the Securities, it will cause such paying agent to
execute and deliver to the Trustee an instrument in which such agent shall agree
with the Trustee, subject to the provision of this Section 3.04,

                           (i) that it will hold all sums held by it as such
         agent for the payment of the principal of and premium, if any, or
         interest on the Securities (whether such sums have been paid to it by
         the Company or by any other obligor on the Securities) in trust for the
         benefit of the holders of the Securities;

                           (ii) that it will give the Trustee notice of any
         failure by the Company (or by any other obligor on the Securities) to
         make any payment of the principal of and premium or interest on the
         Securities when the same shall be due and payable; and

                           (iii) that it will at any time during the continuance
         of any Event of Default, upon the written request of the Trustee,
         forthwith pay to the Trustee all sums so held in trust by it as such
         paying agent.

                  (b) If the Company shall act as its own paying agent, it will,
on or before each due date of the principal of and premium, if any, or interest
on the Securities, set aside, segregate and hold in trust for the benefit of the
holders of the Securities a sum sufficient to



                                       19
   26
pay such principal, premium or interest so becoming due and will notify the
Trustee of any failure to take such action and of any failure by the Company (or
by any other obligor under the Securities) to make any payment of the principal
of and premium, if any, or interest on the Securities when the same shall become
due and payable.

                  (c) Anything in this Section 3.04 to the contrary
notwithstanding, the Company may, at any time, for the purpose of obtaining a
satisfaction and discharge with respect to the Securities hereunder, or for any
other reason, pay or cause to be paid to the Trustee all sums held in trust for
any such Securities by the Trustee or any paying agent hereunder, as required by
this Section 3.04, such sums to be held by the Trustee upon the trusts herein
contained.

                  (d) Anything in this Section 3.04 to the contrary
notwithstanding, the agreement to hold sums in trust as provided in this Section
3.04 is subject to Sections 11.03 and 11.04.

SECTION 3.05. Certificate to Trustee.

                  The Company will deliver to the Trustee on or before 120 days
after the end of each fiscal year in each year, commencing with the first fiscal
year ending after the date hereof, so long as Securities are outstanding
hereunder, an Officers' Certificate, one of the signers of which shall be the
principal executive, principal financial or principal accounting officer of the
Company, stating that in the course of the performance by the signers of their
duties as officers of the Company they would normally have knowledge of any
Default by the Company in the performance of any covenants contained herein,
stating whether or not they have knowledge of any such Default and, if so,
specifying each such Default of which the signers have knowledge and the nature
thereof.

SECTION 3.06. Compliance with Consolidation Provisions.

                  The Company will not, while any of the Securities remains
outstanding, consolidate with, or merge into, or merge into itself, or sell or
convey all or substantially all of its property to any other Person unless the
provisions of Article X hereof are complied with.

SECTION 3.07. Limitation on Dividends.

                  If at any time (i) there shall have occurred any event of
which the Company has actual knowledge that (a) is or with the giving of notice
or the lapse of time, or both, would constitute an Event of Default and (b)
which the Company shall not have taken reasonable steps to cure, (ii) Securities
are held by the Property Trustee and the Company shall be in default with
respect to its payment of any obligations under the Capital Securities
Guarantee, or (iii) the Company shall have given notice of its election of the
exercise of its right to extend the interest payment period pursuant to Section
16.01 and any such extension shall be continuing, then the Company will not, and
will not permit any Subsidiary to,

                  (i) declare or pay any dividends or distributions on, or
         redeem, purchase, acquire, or make a liquidation payment with respect
         to, any of the Company's capital stock (which includes common and
         preferred stock);



                                       20
   27
                  (ii) make any payment of principal, interest or premium, if
         any, on or repay or repurchase or prepay any debt securities of the
         Company (including any Other Debentures) that rank pari passu with or
         junior in right of payment to the Securities; or

                  (iii) make any guarantee payments with respect to any
         guarantee by the Company of the debt securities of any Subsidiary of
         the Company (including Other Guarantees) if such guarantee ranks pari
         passu with or junior in right of payment to the Securities

other than (a) dividends or distributions in shares of, or options, warrants or
rights to subscribe for or purchase shares of, Common Stock of the Company, (b)
any declaration of a dividend in connection with the implementation of a
stockholders' rights plan, or the issuance of stock under any such plan in the
future, or the prepayment or repurchase of any such rights pursuant thereto, (c)
payments under the Capital Securities Guarantee, (d) as a direct result of, and
only to the extent necessary to avoid the issuance of fractional shares of the
Company's capital stock following, a reclassification of the Company's capital
stock or the exchange or the conversion of one class or series of the Company's
capital stock for another class or series of the Company's capital stock, (e)
the purchase of fractional interests in shares of the Company's capital stock
pursuant to the conversion or exchange provisions of such capital stock or the
security being converted or exchanged, and (f) purchases of Common Stock related
to the issuance of Common Stock or rights under any of the Company's benefit
plans for its directors, officers or employees or any of the Company's dividend
reinvestment plans.

SECTION 3.08. Covenants as to Trenwick Capital Trust I.

                  In the event Securities are issued to Trenwick Capital Trust I
or a trustee of such trust in connection with the issuance of Trust Securities
by Trenwick Capital Trust I, for so long as any of such Trust Securities remains
outstanding, the Company will (i) directly or indirectly maintain 100% ownership
of the Common Securities of Trenwick Capital Trust I; provided, however, that
any successor of the Company, permitted pursuant to Article X, may succeed to
the Company's ownership of such Common Securities, (ii) use its reasonable
efforts to cause Trenwick Capital Trust I (a) to remain a business trust, except
in connection with a distribution of Securities, the redemption of all of the
Trust Securities of Trenwick Capital Trust I or certain mergers, consolidations
or amalgamations, each as permitted by the Declaration, and (b) to continue to
be treated as a grantor trust and not as an association taxable as a corporation
for United States federal income tax purposes, and (iii) use its reasonable
efforts to cause each holder of Trust Securities to be treated as owning an
individual beneficial interest in the Securities.

SECTION 3.09. Payment of Expenses.

                  In connection with the offering, sale and issuance of the
Securities to Trenwick Capital Trust I and in connection with the sale of the
Trust Securities by Trenwick Capital Trust I, the Company, in its capacity as
borrower with respect to the Securities, shall:

                  (a) pay all costs and expenses relating to the offering, sale
         and issuance of the Securities, including commissions to the Initial
         Purchaser payable pursuant to the Purchase Agreement, fees and expenses
         in connection with the Exchange Offer or other


                                       21
   28
         action to be taken pursuant to the Registration Rights Agreement and
         compensation of the Trustee in accordance with the provisions of
         Section 6.06;

                  (b) pay all costs and expenses of Trenwick Capital Trust I
         (including, but not limited to, costs and expenses relating to the
         organization of Trenwick Capital Trust I, the offering, sale and
         issuance of the Trust Securities (including commissions to the Initial
         Purchaser in connection therewith), the fees and expenses of the
         Property Trustee and the Delaware Trustee, the costs and expenses
         relating to the operation of Trenwick Capital Trust I;

                  (c) be primarily and fully liable for any indemnification
         obligations arising with respect to the Declaration;

                  (d) pay any and all taxes (other than United States
         withholding taxes attributable to Trenwick Capital Trust I or its
         assets) and all liabilities, costs and expenses with respect to such
         taxes of Trenwick Capital Trust I; and

                  (e) pay all other fees, expenses, debts and obligations (other
         than payments of principal of, and premium, if any, or interest on the
         Trust Securities) related to Trenwick Capital Trust I.

SECTION 3.10. Payment Upon Resignation or Removal.

                  Upon termination of this Indenture or the removal or
resignation of the Trustee, unless otherwise stated, the Company shall pay to
the Trustee all amounts accrued and owing to the date of such termination,
removal or resignation. Upon termination of the Declaration or the removal or
resignation of the Delaware Trustee or the Property Trustee, as the case may be,
pursuant to Section 5.7 of the Declaration, the Company shall pay to the
Delaware Trustee or the Property Trustee, as the case may be, all amounts
accrued and owing to the date of such termination, removal or resignation.

                                   ARTICLE IV.

                    SECURITYHOLDERS' LISTS AND REPORTS BY THE
                             COMPANY AND THE TRUSTEE

SECTION 4.01. Securityholders' Lists.

                  The Company covenants and agrees that it will furnish or cause
to be furnished to the Trustee:

                  (a) on a semi-annual basis on each Regular Record Date for the
         Securities, a list, in such form as the Trustee may reasonably require,
         of the names and addresses of the Securityholders as of such record
         date;

                  (b) at such other times as the Trustee may request in writing,
         within 30 Business Days after the receipt by the Company of any such
         request, a list of similar


                                       22
   29
         form and content as of a date not more than 15 Business Days prior to
         the time such list is furnished,

except that no such list need be furnished so long as the Trustee is in
possession thereof by reason of its acting as Security registrar.

                  The Company hereby appoints the Trustee as Securities
registrar.

SECTION 4.02. Preservation and Disclosure of Lists.

                  (a) The Trustee shall preserve, in as current a form as is
reasonably practicable, all information as to the names and addresses of the
holders of the Securities (1) contained in the most recent list furnished to it
as provided in Section 4.01 or (2) received by it in the capacity of Securities
registrar (if so acting) hereunder. The Trustee may destroy any list furnished
to it as provided in Section 4.01 upon receipt of a new list so furnished.

                  (b) In case three or more holders of Securities (hereinafter
referred to as "applicants") apply in writing to the Trustee and furnish to the
Trustee reasonable proof that each such applicant has owned a Security for a
period of at least six months preceding the date of such application, and such
application states that the applicants desire to communicate with other holders
of Securities or with holders of all Securities with respect to their rights
under this Indenture and is accompanied by a copy of the form of proxy or other
communication which such applicants propose to transmit, then the Trustee shall
within 5 Business Days after the receipt of such application, at its election,
either:

                           (i) afford such applicants access to the information
         preserved at the time by the Trustee in accordance with the provisions
         of subsection (a) of this Section 4.02; or

                           (ii) inform such applicants as to the approximate
         number of holders of all Securities whose names and addresses appear in
         the information preserved at the time by the Trustee in accordance with
         the provisions of subsection (a) of this Section 4.02, and as to the
         approximate cost of mailing to such Securityholders the form of proxy
         or other communication, if any, specified in such application.

                  If the Trustee shall elect not to afford such applicants
access to such information, the Trustee shall, upon the written request of such
applicants, mail to each Securityholder whose name and address appear in the
information preserved at the time by the Trustee in accordance with the
provisions of subsection (a) of this Section 4.02 a copy of the form of proxy or
other communication which is specified in such request with reasonable
promptness after a tender to the Trustee of the material to be mailed and of
payment, or provision for the payment, of the reasonable expenses of mailing,
unless within 5 Business Days after such tender, the Trustee shall mail to such
applicants and file with the Commission, together with a copy of the material to
be mailed, a written statement to the effect that, in the opinion of the
Trustee, such mailing would be contrary to the best interests of the holders of
all Securities or would be in violation of applicable law. Such written
statement shall specify the basis of such opinion. If the Commission, after
opportunity for a hearing upon the objections specified in the written statement
so filed, shall enter an order refusing to sustain any of such objections or if,
after the entry of an order sustaining one or more of such



                                       23
   30
objections, the Commission shall find, after notice and opportunity for hearing,
that all the objections so sustained have been met and shall enter an order so
declaring, the Trustee shall mail copies of such material to all such
Securityholders with reasonable promptness after the entry of such order and the
renewal of such tender; otherwise the Trustee shall be relieved of any
obligation or duty to such applicants respecting their application.

                  (c) Each and every holder of Securities, by receiving and
holding the same, agrees with the Company and the Trustee that neither the
Company nor the Trustee nor any paying agent shall be held accountable by reason
of the disclosure of any such information as to the names and addresses of the
holders of Securities in accordance with the provisions of subsection (b) of
this Section 4.02, regardless of the source from which such information was
derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under said subsection (b).

SECTION 4.03. Reports of the Company.

                  (a) The Company covenants and agrees to file with the Trustee,
within 15 Business Days after the date on which the Company files the same with
the Commission, copies of the annual reports and of the information, documents
and other reports (or copies of such portions of any of the foregoing as the
Commission may from time to time by rules and regulations prescribe) which the
Company may be required to file with the Commission pursuant to Section 13 or
Section 15(d) of the Exchange Act; or, if the Company is not required to file
information, documents or reports pursuant to either of such sections, then to
file with the Trustee and the Commission, in accordance with rules and
regulations prescribed from time to time by the Commission, such of the
supplementary and periodic information, documents and reports which may be
required pursuant to Section 13 of the Exchange Act in respect of a security
listed and registered on a national securities exchange as may be prescribed
from time to time in such rules and regulations.

                  (b) The Company covenants and agrees to file with the Trustee
and the Commission, in accordance with the rules and regulations prescribed from
time to time by the Commission, such additional information, documents and
reports with respect to compliance by the Company with the conditions and
covenants provided for in this Indenture as may be required from time to time by
such rules and regulations.

                  (c) The Company covenants and agrees to transmit by mail to
all holders of Securities, as the names and addresses of such holders appear
upon the Security Register, within 30 days after the filing thereof with the
Trustee, such summaries of any information, documents and reports required to be
filed by the Company pursuant to subsections (a) and (b) of this Section 4.03 as
may be required by rules and regulations prescribed from time to time by the
Commission.

                  (d) Delivery of such reports, information and documents to the
Trustee is for informational purposes only and the Trustee's receipt of such
shall not constitute constructive notice of any information contained therein or
determinable from information contained therein, including the Company's
compliance with any of its covenants hereunder (as to which the Trustee is
entitled to rely exclusively on Officers' Certificates).



                                       24
   31
                  (e) So long as is required for an offer or sale of the
Securities to qualify for an exemption under Rule 144A under the Securities Act,
the Company shall, upon request, provide the information required by clause
(d)(4) thereunder to each Holder and to each beneficial owner and prospective
purchaser of Securities identified by any holder of Restricted Securities,
unless such information is furnished to the Commission pursuant to Section 13 or
15(d) of the Exchange Act.

SECTION 4.04. Reports by the Trustee.

                  Within 60 days after May 15 of each year, commencing May 15,
1997, the Trustee shall provide to the holders of the Securities such reports as
are required by Section 313 of the Trust Indenture Act of 1939, if any, in the
form and in the manner provided by Section 313 of the Trust Indenture Act of
1939. The Trustee shall also comply with the requirements of Section 313(d) of
the Trust Indenture Act of 1939.

                                   ARTICLE V.

                   REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS
                               ON EVENT OF DEFAULT

SECTION 5.01. Events of Default.

                  One or more of the following events of default shall
constitute an Event of Default hereunder (whatever the reason for such Event of
Default and whether it shall be voluntary or involuntary or be effected by
operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

                  (a) default in the payment of any interest upon any Security
         or any Other Debentures when it becomes due and payable, and
         continuance of such default for a period of 30 days; provided, however,
         that a valid extension of an interest payment period by the Company in
         accordance with the terms hereof or, in the case of any Other
         Debenture, the indenture related thereto, shall not constitute a
         default in the payment of interest for this purpose; or

                  (b) default in the payment of all or any part of the principal
         of (or premium, if any, on) any Security or any Other Debentures as and
         when the same shall become due and payable either at maturity, upon
         prepayment, by declaration of acceleration of maturity or otherwise; or

                  (c) default in the performance, or breach, of any covenant or
         warranty of the Company in this Indenture (other than a covenant or
         warranty a default in whose performance or whose breach is elsewhere in
         this Section specifically dealt with), and continuance of such default
         or breach for a period of 90 days after there has been given, by
         registered or certified mail, to the Company by the Trustee or to the
         Company and the Trustee by the holders of at least 25% in principal
         amount of the outstanding Securities a written notice specifying such
         default or breach and requiring it to be remedied and stating that such
         notice is a "Notice of Default" hereunder; or



                                       25
   32
                  (d) a court having jurisdiction in the premises shall enter a
         decree or order for relief in respect of the Company in an involuntary
         case under any applicable bankruptcy, insolvency or other similar law
         now or hereafter in effect, or appointing a receiver, liquidator,
         assignee, custodian, trustee, sequestrator (or similar official) of the
         Company or all or substantially all of its property, or ordering the
         winding-up or liquidation of its affairs and such decree or order shall
         remain unstayed and in effect for a period of 90 consecutive days; or

                  (e) the Company shall commence a voluntary case under any
         applicable bankruptcy, insolvency or other similar law now or hereafter
         in effect, shall consent to the entry of an order for relief in an
         involuntary case under any such law, or shall consent to the
         appointment of or taking possession by a receiver, liquidator,
         assignee, trustee, custodian, sequestrator (or other similar official)
         of the Company or all or substantially all of its property, or shall
         make any general assignment for the benefit of creditors, or shall fail
         generally to pay its debts as they become due.

                  If an Event of Default with respect to Securities at the time
outstanding occurs and is continuing, then in every such case the Trustee or the
holders of not less than 25% in principal amount of the Securities at the time
outstanding may declare the principal amount of all Securities to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by the holders of the outstanding Securities), and upon any such
declaration the same shall become immediately due and payable, provided,
however, that if an Event of Default specified in any one of paragraphs (d) or
(e) of this Section 5.01 occurs, all unpaid principal and accrued interest on
the Securities at the time outstanding shall become due and payable without any
declaration or other act on the part of the Trustee or any holder of the
Securities.

                  The foregoing provisions, however, are subject to the
condition that if, at any time after the principal of the Securities shall have
been so declared due and payable, and before any judgment or decree for the
payment of the moneys due shall have been obtained or entered as hereinafter
provided, (i) the Company shall pay or shall deposit with the Trustee a sum
sufficient to pay (A) all matured installments of interest upon all the
Securities and the principal of and premium, if any, on any and all Securities
which shall have become due otherwise than by acceleration (with interest upon
such principal and premium, if any, and, to the extent that payment of such
interest is enforceable under applicable law, on overdue installments of
interest, at the same rate as the rate of interest specified in the Securities
to the date of such payment or deposit) and (B) such amount as shall be
sufficient to cover reasonable compensation to the Trustee and each predecessor
Trustee, their respective agents, attorneys and counsel, and all other expenses
and liabilities incurred, and all advances made, by the Trustee and each
predecessor Trustee except as a result of negligence or bad faith, and (ii) any
and all Events of Default under the Indenture shall have been cured, waived or
otherwise remedied as provided herein, then, in every such case, the holders of
a majority in principal amount of the Securities at the time outstanding, by
written notice to the Company and to the Trustee, may rescind and annul such
declaration and its consequences, but no such waiver or rescission and annulment
shall extend to or shall affect any subsequent default or shall impair any right
consequent thereon.



                                       26
   33
                  In case the Trustee shall have proceeded to enforce any right
under this Indenture and such proceedings shall have been discontinued or
abandoned because of such rescission or annulment or for any other reason or
shall have been determined adversely to the Trustee, then and in every such case
the Company, the Trustee and the holders of the Securities shall be restored
respectively to their several positions and rights hereunder, and all rights,
remedies and powers of the Company, the Trustee and the holders of the
Securities shall continue as though no such proceeding had been taken.

SECTION 5.02. Payment of Securities on Default; Suit Therefor.

                  The Company covenants that (a) in case default shall be made
in the payment of any installment of interest upon any of the Securities as and
when the same shall become due and payable, and such default shall have
continued for a period of 30 days, or (b) in case default shall be made in the
payment of the principal of or premium, if any, on any of the Securities as and
when the same shall have become due and payable, whether at maturity of the
Securities or upon prepayment or by declaration of acceleration of maturity or
otherwise, then, upon demand of the Trustee, the Company will pay to the
Trustee, for the benefit of the holders of the Securities, the whole amount that
then shall have become due and payable on all such Securities for principal and
premium, if any, or interest, or both, as the case may be, with interest upon
the overdue principal and premium, if any, and (to the extent that payment of
such interest is enforceable under applicable law and, if the Securities are
held by Trenwick Capital Trust I or a trustee of such trust, without duplication
of any other amounts paid by Trenwick Capital Trust I or a trustee in respect
thereof) upon the overdue installments of interest at the rate borne by the
Securities; and, in addition thereto, such further amount as shall be sufficient
to cover the costs and expenses of collection, including a reasonable
compensation to the Trustee, its agents, attorneys and counsel, and any expenses
or liabilities incurred by the Trustee hereunder other than through its
negligence or bad faith.

                  In case the Company shall fail forthwith to pay such amounts
upon such demand, the Trustee, in its own name and as trustee of an express
trust, shall be entitled and empowered to institute any actions or proceedings
at law or in equity for the collection of the sums so due and unpaid, and may
prosecute any such action or proceeding to judgment or final decree, and may
enforce any such judgment or final decree against the Company or any other
obligor on the Securities and collect in the manner provided by law out of the
property of the Company or any other obligor on the Securities wherever situated
the moneys adjudged or decreed to be payable.

                  In case there shall be pending proceedings for the bankruptcy
or for the reorganization of the Company or any other obligor on the Securities
under Title 11, United States Code, or any other applicable law, or in case a
receiver or trustee shall have been appointed for the property of the Company or
such other obligor, or in the case of any other similar judicial proceedings
relative to the Company or other obligor upon the Securities, or to the
creditors or property of the Company or such other obligor, the Trustee,
irrespective of whether the principal of the Securities shall then be due and
payable as therein expressed or by declaration or otherwise and irrespective of
whether the Trustee shall have made any demand pursuant to the provisions of
this Section 5.02, shall be entitled and empowered, by intervention in such
proceedings or otherwise, to file and prove a claim or claims for the whole
amount of principal and interest owing and unpaid in respect of the Securities
and, in case of any judicial proceedings, to file such proofs of claim and other
papers or documents as may be



                                       27
   34
necessary or advisable in order to have the claims of the Trustee (including any
claim for reasonable compensation to the Trustee and each predecessor Trustee,
and their respective agents, attorneys and counsel, and for reimbursement of all
expenses and liabilities incurred, and all advances made, by the Trustee and
each predecessor Trustee, except as a result of negligence or bad faith) and of
the Securityholders allowed in such judicial proceedings relative to the Company
or any other obligor on the Securities, or to the creditors or property of the
Company or such other obligor, unless prohibited by applicable law and
regulations, to vote on behalf of the holders of the Securities in any election
of a trustee or a standby trustee in arrangement, reorganization, liquidation or
other bankruptcy or insolvency proceedings or person performing similar
functions in comparable proceedings, and to collect and receive any moneys or
other property payable or deliverable on any such claims, and to distribute the
same after the deduction of its charges and expenses; and any receiver, assignee
or trustee in bankruptcy or reorganization is hereby authorized by each of the
Securityholders to make such payments to the Trustee, and, in the event that the
Trustee shall consent to the making of such payments directly to the
Securityholders, to pay to the Trustee such amounts as shall be sufficient to
cover reasonable compensation to the Trustee, each predecessor Trustee and their
respective agents, attorneys and counsel, and all other expenses and liabilities
incurred, and all advances made, by the Trustee and each predecessor Trustee
except as a result of negligence or bad faith.

                  Nothing herein contained shall be construed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any
Securityholder any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any holder thereof or to
authorize the Trustee to vote in respect of the claim of any Securityholder in
any such proceeding.

                  All rights of action and of asserting claims under this
Indenture, or under any of the Securities, may be enforced by the Trustee
without the possession of any of the Securities, or the production thereof in
any trial or other proceeding relative thereto, and any such suit or proceeding
instituted by the Trustee shall be brought in its own name as trustee of an
express trust, and any recovery of judgment shall be for the ratable benefit of
the holders of the Securities.

                  In any proceedings brought by the Trustee (and also any
proceedings involving the interpretation of any provision of this Indenture to
which the Trustee shall be a party) the Trustee shall be held to represent all
the holders of the Securities, and it shall not be necessary to make any holders
of the Securities parties to any such proceedings.

SECTION 5.03. Application of Moneys Collected by Trustee.

                  Any moneys collected by the Trustee shall be applied in the
order following, at the date or dates fixed by the Trustee for the distribution
of such moneys, upon presentation of the Securities in respect of which moneys
have been collected, and stamping thereon the payment, if only partially paid,
and upon surrender thereof if fully paid:

                  First: To the payment of all amounts due to the Trustee under
Section 6.06, including the costs and expenses of collection applicable to the
Securities and reasonable compensation to the Trustee, its agents, attorneys and
counsel, and of all other expenses and


                                       28
   35
liabilities incurred, and all advances made, by the Trustee except as a result
of its negligence or bad faith;

                  Second: To the payment of all Senior Indebtedness of the
Company if and to the extent required by Article XV;

                  Third: In case the principal of the outstanding Securities in
respect of which moneys have been collected shall not have become due and be
unpaid, to the payment of the amounts then due and unpaid upon Securities for
principal of (and premium, if any) and interest on the Securities, in respect of
which or for the benefit of which money has been collected, ratably, without
preference of priority of any kind, according to the amounts due on such
Securities for principal (and premium, if any) and interest, respectively; and

                  Fourth:  To the Company.

SECTION 5.04. Proceedings by Securityholders.

                  No holder of any Security shall have any right by virtue of or
by availing of any provision of this Indenture to institute any suit, action or
proceeding in equity or at law upon or under or with respect to this Indenture
or for the appointment of a receiver or trustee, or for any other remedy
hereunder, unless such holder previously shall have given to the Trustee written
notice of an Event of Default and of the continuance thereof with respect to the
Securities specifying such Event of Default, as hereinbefore provided, and
unless also the holders of not less than 25% in principal amount of the
Securities at the time outstanding shall have made written request upon the
Trustee to institute such action, suit or proceeding in its own name as Trustee
hereunder and shall have offered to the Trustee such reasonable indemnity as it
may require against the costs, expenses and liabilities to be incurred therein
or thereby, and the Trustee for 90 days after its receipt of such notice,
request and offer of indemnity shall have failed to institute any such action,
suit or proceeding, and during such 90 days the holders of a majority in
principal amount of the Securities at the time outstanding do not give a
direction to the Trustee inconsistent with the request, it being understood and
intended, and being expressly covenanted by the taker and holder of every
Security with every other taker and holder and the Trustee, that no one or more
holders of Securities shall have any right in any manner whatever by virtue of
or by availing of any provision of this Indenture to affect, disturb or
prejudice the rights of any other holder of Securities, or to obtain or seek to
obtain priority over or preference to any other such holder, or to enforce any
right under this Indenture, except in the manner herein provided and for the
equal, ratable and common benefit of all holders of Securities.

                  Notwithstanding any other provisions in this Indenture,
however, the right of any holder of any Security to receive payment of the
principal of (premium, if any) and interest on such Security, on or after the
same shall have become due and payable, or to institute suit for the enforcement
of any such payment, shall not be impaired or affected without the consent of
such holder and by accepting a Security hereunder it is expressly understood,
intended and covenanted by the taker and holder of every Security with every
other such taker and holder and the Trustee, that no one or more holders of
Securities shall have any right in any manner whatsoever by virtue or by
availing of any provision of this Indenture to affect, disturb or prejudice the
rights of the holders of any other Securities, or to obtain or seek to obtain
priority over or preference to any other such holder, or to enforce any right
under this



                                       29
   36
Indenture, except in the manner herein provided and for the equal, ratable and
common benefit of all holders of Securities. For the protection and enforcement
of the provisions of this Section, each and every Securityholder and the Trustee
shall be entitled to such relief as can be given either at law or in equity.

                  The Company and the Trustee acknowledge that pursuant to the
Declaration, the holders of Capital Securities are entitled, in the
circumstances and subject to the limitations set forth therein, to commence a
Direct Action with respect to any Event of Default under this Indenture and the
Securities. Without the consent of each holder of Capital Securities then
outstanding, the Company shall not take any action that impairs or affects the
right of holders of Capital Securities to bring a Direct Action.

SECTION 5.05. Proceedings by Trustee.

                  In case an Event of Default occurs with respect to Securities
and is continuing, the Trustee may in its discretion proceed to protect and
enforce the rights vested in it by this Indenture by such appropriate judicial
proceedings as the Trustee shall deem most effectual to protect and enforce any
of such rights, either by suit in equity or by action at law or by proceeding in
bankruptcy or otherwise, whether for the specific enforcement of any covenant or
agreement contained in this Indenture or in aid of the exercise of any power
granted in this Indenture, or to enforce any other legal or equitable right
vested in the Trustee by this Indenture or by law.

SECTION 5.06. Remedies Cumulative and Continuing.

                  Except as provided in the last paragraph of Section 2.08, all
powers and remedies given by this Article V to the Trustee or to the
Securityholders shall, to the extent permitted by law, be deemed cumulative and
not exclusive of any other powers and remedies available to the Trustee or the
holders of the Securities, by judicial proceedings or otherwise, to enforce the
performance or observance of the covenants and agreements contained in this
Indenture or otherwise established with respect to the Securities, and no delay
or omission of the Trustee or of any holder of any of the Securities to exercise
any right or power accruing upon any Event of Default occurring and continuing
as aforesaid shall impair any such right or power, or shall be construed to be a
waiver of any such default or an acquiescence therein; and, subject to the
provisions of Section 5.04, every power and remedy given by this Article V or by
law to the Trustee or to the Securityholders may be exercised from time to time,
and as often as shall be deemed expedient, by the Trustee or by the
Securityholders.

SECTION 5.07.  Direction of Proceedings and Waiver of Defaults by Majority of
               Securityholders.

                  The holders of a majority in principal amount of the
Securities at the time outstanding shall have the right to direct the time,
method, and place of conducting any proceeding for any remedy available to the
Trustee, or exercising any trust or power conferred on the Trustee; provided,
however, that (subject to the provisions of Section 6.01) the Trustee shall have
the right to decline to follow any such direction if the Trustee shall determine
that the action so directed would be unjustly prejudicial to the holders not
taking part in such direction or if the Trustee being advised by counsel
determines that the action or proceeding so directed may not lawfully be taken
or if the Trustee in good faith by its board of directors or



                                       30
   37
trustees, executive committee, or a trust committee of directors or trustees
and/or Responsible Officers, shall determine that the action or proceedings so
directed would involve the Trustee in personal liability. Prior to any
declaration accelerating the Stated Maturity of the Securities, the holders of a
majority in principal amount of the Securities at the time outstanding may on
behalf of the holders of all of the Securities waive any past Default or Event
of Default and its consequences except a Default (a) in the payment of principal
of or premium, if any, or interest on any of the Securities or (b) in respect of
covenants or provisions hereof which cannot be modified or amended without the
consent of the holder of each Security affected; provided, however, that if the
Securities are held by the Property Trustee, such waiver or modification to such
waiver shall not be effective until the holders of a majority in aggregate
liquidation amount of Trust Securities shall have consented to such waiver or
modification to such waiver; provided, further, that if the consent of the
holder of each outstanding Security is required, such waiver shall not be
effective until each holder of the Trust Securities shall have consented to such
waiver. Upon any such waiver, the Default covered thereby shall be deemed to be
cured for all purposes of this Indenture and the Company, the Trustee and the
holders of the Securities shall be restored to their former positions and rights
hereunder, respectively; but no such waiver shall extend to any subsequent or
other Default or impair any right consequent thereon. Whenever any Default or
Event of Default hereunder shall have been waived as permitted by this Section
5.07, said Default or Event of Default shall for all purposes of the Securities
and this Indenture be deemed to have been cured and to be not continuing.

SECTION 5.08. Notice of Defaults.

                  The Trustee shall, within 90 days after the occurrence of a
Default with respect to the Securities mail to all Securityholders, as the names
and addresses of such holders appear upon the Security register, notice of all
Defaults known to the Trustee, unless such Defaults shall have been cured before
the giving of such notice (the term "Defaults" for the purpose of this Section
5.08 being hereby defined to be the events specified in clauses (a), (b), (c),
(d) and (e) of Section 5.01, not including periods of grace, if any, provided
for therein, and irrespective of the giving of written notice specified in
clause (c) of Section 5.01); and provided, that, except in the case of Default
in the payment of the principal of or premium, if any, or interest on any of the
Securities, the Trustee shall be protected in withholding such notice if and so
long as the board of directors of the Trustee, the executive committee thereof,
or a trust committee of directors and/or Responsible Officers of the Trustee in
good faith determines that the withholding of such notice is in the interests of
the Securityholders; and provided, further, that in the case of any Default of
the character specified in Section 5.01(c), no such notice to Securityholders
shall be given until at least 60 days after the occurrence thereof but shall be
given within 90 days after such occurrence.

SECTION 5.09. Undertaking to Pay Costs.

                  All parties to this Indenture agree, and each holder of any
Security by his acceptance thereof shall be deemed to have agreed, that any
court may in its discretion require, in any suit for the enforcement of any
right or remedy under this Indenture, or in any suit against the Trustee for any
action taken or omitted by it as Trustee, the filing by any party litigant in
such suit of an undertaking to pay the costs of such suit, and that such court
may in its discretion assess reasonable costs, including reasonable attorneys'
fees and expenses, against any party litigant in such suit, having due regard to
the merits and good faith of the claims or defenses made by such party litigant;
but the provisions of this Section 5.09 shall not


                                       31
   38
apply to any suit instituted by the Trustee, to any suit instituted by any
Securityholder or group of Securityholders holding in the aggregate more than
10% in principal amount of the Securities outstanding at the time outstanding,
or to any suit instituted by any Securityholder for the enforcement of the
payment of the principal of (or premium, if any) or interest on any Security
against the Company on or after the same shall have become due and payable.

SECTION 5.10 Waiver of Stay or Extension Laws.

                  The Company (to the extent it may lawfully do so) shall not at
any time insist upon, or plead, or in any manner whatsoever claim or take the
benefit or advantage of, any stay or extension law wherever enacted, now or at
any time hereafter in force, which may affect the covenants or the performance
of this Indenture; and the Company (to the extent that it may lawfully do so)
hereby expressly waives all benefit or advantage of any such law, and shall not
hinder, delay or impede the execution of any power herein granted to the
Trustee, but shall suffer and permit the execution of every such power as though
no such law had been enacted.

SECTION 5.11 Delay or Omission Not Waiver.

                  No delay or omission of the Trustee or any Securityholder to
exercise any right or remedy accruing upon any Event of Default shall impair any
such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein. Every right and remedy given by this Article V or by law
to the Trustee or to the Securityholders may be exercised from time to time, and
as often as may be deemed expedient, by the Trustee or by the Securityholders,
as the case may be.

                                   ARTICLE VI.

                             CONCERNING THE TRUSTEE

SECTION 6.01. Duties and Responsibilities of Trustee.

                  With respect to the holders of the Securities issued
hereunder, the Trustee, prior to the occurrence of an Event of Default and after
the curing or waiving of all Events of Default which may have occurred,
undertakes to perform such duties and only such duties as are specifically set
forth in this Indenture. In case an Event of Default has occurred (which has not
been cured or waived) the Trustee shall exercise such of the rights and powers
vested in it by this Indenture, and use the same degree of care and skill in
their exercise, as a prudent man would exercise or use under the circumstances
in the conduct of his own affairs.

                  No provision of this Indenture shall be construed to relieve
the Trustee from liability for its own negligent action, its own negligent
failure to act or its own willful misconduct, except that

                  (a) prior to the occurrence of an Event of Default and after
the curing or waiving of all Events of Default which may have occurred:



                                       32
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                           (i) the duties and obligations of the Trustee shall
         be determined solely by the express provisions of this Indenture, and
         the Trustee shall not be liable except for the performance of such
         duties and obligations as are specifically set forth in this Indenture,
         and no implied covenants or obligations shall be read into this
         Indenture against the Trustee; and

                           (ii) in the absence of bad faith on the part of the
         Trustee, the Trustee may conclusively rely, as to the truth of the
         statements and the correctness of the opinions expressed therein, upon
         any certificates or opinions furnished to the Trustee and conforming to
         the requirements of this Indenture; but, in the case of any such
         certificates or opinions which by any provision hereof are specifically
         required to be furnished to the Trustee, the Trustee shall be under a
         duty to examine the same to determine whether or not they conform to
         the requirements of this Indenture;

                  (b) the Trustee shall not be liable for any error of judgment
made in good faith by a Responsible Officer or Officers of the Trustee, unless
it shall be proved that the Trustee was negligent in ascertaining the pertinent
facts; and

                  (c) the Trustee shall not be liable with respect to any action
taken or omitted to be taken by it in good faith, in accordance with the
direction of the Securityholders pursuant to Section 5.07, relating to the time,
method and place of conducting any proceeding for any remedy available to the
Trustee, or exercising any trust or power conferred upon the Trustee, under this
Indenture.

                  None of the provisions contained in this Indenture shall
require the Trustee to expend or risk its own funds or otherwise incur personal
financial liability in the performance of any of its duties or in the exercise
of any of its rights or powers, if there is reasonable ground for believing that
the repayment of such funds or liability is not reasonably assured to it under
the terms of this Indenture or adequate indemnity against such risk is not
reasonably assured to it.

                  Every portion of this Indenture relating to the conduct or
affecting the liability of or affording protection to the Trustee shall be
subject to the provisions of this Article VI and to the provisions of the Trust
Indenture Act of 1939.

SECTION 6.02. Reliance on Documents, Opinions, etc.

                  Except as otherwise provided in Section 6.01:

                  (a) the Trustee may rely and shall be protected in acting or
         refraining from acting upon any resolution, certificate, statement,
         instrument, opinion, report, notice, request, consent, order, bond,
         note, debenture or other paper or document believed by it to be genuine
         and to have been signed or presented by the proper party or parties,
         and the Trustee need not investigate any fact or matter stated in such
         document;

                  (b) any request, direction, order or demand of the Company
         mentioned herein may be sufficiently evidenced by an Officers'
         Certificate (unless other evidence in respect thereof be herein
         specifically prescribed) and the Trustee shall not be liable for any
         action taken or suffered or omitted by it hereunder in good faith in
         reliance on


                                       33
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         such Officers' Certificate; and any Board Resolution may be evidenced
         to the Trustee by a copy thereof certified by the Secretary or an
         Assistant Secretary of the Company;

                  (c) the Trustee may consult with counsel of its selection and
         any advice or Opinion of Counsel shall be full and complete
         authorization and protection in respect of any action taken or suffered
         or omitted by it hereunder in good faith and in accordance with such
         advice or Opinion of Counsel;

                  (d) the Trustee shall be under no obligation to exercise any
         of the rights or powers vested in it by this Indenture at the request,
         order or direction of any of the Securityholders, pursuant to the
         provisions of this Indenture, unless such Securityholders shall have
         offered to the Trustee reasonable security or indemnity against the
         costs, expenses and liabilities which may be incurred therein or
         thereby;

                  (e) the Trustee shall not be liable for any action taken or
         omitted by it in good faith and believed by it to be authorized or
         within the discretion or rights or powers conferred upon it by this
         Indenture; nothing contained herein shall, however, relieve the Trustee
         of the obligation, upon the occurrence of an Event of Default (that has
         not been cured or waived), to exercise such of the rights and powers
         vested in it by this Indenture, and to use the same degree of care and
         skill in their exercise, as a prudent man would exercise or use under
         the circumstances in the conduct of his own affairs;

                  (f) the Trustee shall not be bound to make any investigation
         into the facts or matters stated in any resolution, certificate,
         statement, instrument, opinion, report, notice, request, consent,
         order, approval, bond, debenture, coupon or other paper or document,
         unless requested in writing to do so by the holders of a majority in
         principal amount of the Securities at the time outstanding; provided,
         however, that if the payment within a reasonable time to the Trustee of
         the costs, expenses or liabilities likely to be incurred by it in the
         making of such investigation is, in the opinion of the Trustee, not
         reasonably assured to the Trustee by the security afforded to it by the
         terms of this Indenture, the Trustee may require reasonable indemnity
         against such expense or liability as a condition to so proceeding; and

                  (g) the Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents (including any Authenticating Agent) or attorneys, and
         the Trustee shall not be responsible for any misconduct or negligence
         on the part of any such agent or attorney appointed by it with due
         care.

                  (h) The Trustee shall not be charged with knowledge of any
         Default or Event of Default except (i) a Default under Sections 5.01(a)
         and 5.01(b) of this Indenture (other than with respect to the payment
         of Additional Interest) or (ii) any Default or Event of Default of
         which a Responsible Officer shall have actual knowledge thereof or the
         Trustee shall have received notice thereof in accordance with Section
         13.03 hereof from the Company or any Securityholder.

SECTION 6.03. No Responsibility for Recitals, etc.



                                       34
   41
                  The recitals contained herein and in the Securities (except in
the certificate of authentication of the Trustee or the Authenticating Agent)
shall be taken as the statements of the Company, and the Trustee and the
Authenticating Agent assume no responsibility for the correctness of the same.
The Trustee and the Authenticating Agent make no representations as to the
validity or sufficiency of this Indenture or of the Securities. The Trustee and
the Authenticating Agent shall not be accountable for the use or application by
the Company of any Securities or the proceeds of any Securities authenticated
and delivered by the Trustee or the Authenticating Agent in conformity with the
provisions of this Indenture.

SECTION 6.04. Trustee, Authenticating Agent, Paying Agents, Transfer Agents or
              Registrar May Own Securities.

                  The Trustee or any Authenticating Agent or any paying agent or
any transfer agent or any Security registrar, in its individual or any other
capacity, may become the owner or pledgee of Securities with the same rights it
would have if it were not Trustee, Authenticating Agent, paying agent, transfer
agent or Security registrar.

SECTION 6.05. Moneys to be Held in Trust.

                  Subject to the provisions of Section 11.04, all moneys
received by the Trustee or any paying agent shall, until used or applied as
herein provided, be held in trust for the purpose for which they were received,
but need not be segregated from other funds except to the extent required by
law. The Trustee and any paying agent shall be under no liability for interest
on any money received by it hereunder except as otherwise agreed in writing with
the Company. So long as no Event of Default shall have occurred and be
continuing, all interest allowed on any such moneys shall be paid from time to
time upon the written order of the Company, signed by the Chairman of the Board
of Directors, the President or a Vice President or the Treasurer or an Assistant
Treasurer of the Company.



                                       35
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SECTION 6.06. Compensation and Expenses of Trustee.

                  The Company covenants and agrees to pay to the Trustee from
time to time, and the Trustee shall be entitled to, such compensation as shall
be agreed to in writing between the Company and the Trustee (which shall not be
limited by any provision of law in regard to the compensation of a trustee of an
express trust), and the Company will pay or reimburse the Trustee upon its
request for all reasonable expenses, disbursements and advances incurred or made
by the Trustee in accordance with any of the provisions of this Indenture
(including the reasonable compensation and the expenses and disbursements of its
counsel and of all persons not regularly in its employ) except any such expense,
disbursement or advance as may arise from its negligence or bad faith. The
Trustee's compensation shall not be limited by any provision of law in regard to
the compensation of a trustee of an express trust. The Company also covenants to
indemnify each of the Trustee or any predecessor Trustee (and its officers,
agents, directors and employees) for, and to hold it harmless against, any and
all loss, damage, claim, liability or expense including reasonable attorney's
fees and taxes (other than taxes based on the income of the Trustee) incurred
without negligence or bad faith on the part of the Trustee and arising out of or
in connection with the acceptance or administration of this trust, including the
costs and expenses of defending itself against any claim of liability in the
premises. The obligations of the Company under this Section 6.06 to compensate
and indemnify the Trustee and to pay or reimburse the Trustee for expenses,
disbursements and advances shall constitute additional indebtedness hereunder.
Such additional indebtedness shall be secured by a lien prior to that of the
Securities upon all property and funds held or collected by the Trustee in its
capacity as such, except funds held in trust for the benefit of the holders of
particular Securities.

                  Without prejudice to any other rights available to the Trustee
under applicable law, when the Trustee incurs expenses or renders services in
connection with an Event of Default specified in Section 5.01(d) or Section
5.01(e), the expenses (including the reasonable charges and expenses of its
counsel) and the compensation for the services of the Trustee as provided for
herein are intended to constitute expenses of administration under any
applicable federal or state bankruptcy, insolvency or other similar law.

                  The provisions of this Section shall survive resignation or
removal of the Trustee and the termination of this Indenture.

SECTION 6.07. Officers' Certificate as Evidence.

                  Except as otherwise provided in Sections 6.01 and 6.02,
whenever in the administration of the provisions of this Indenture the Trustee
shall deem it necessary or desirable that a matter be proved or established
prior to taking or omitting any action hereunder, such matter (unless other
evidence in respect thereof is herein specifically prescribed) may, in the
absence of negligence or bad faith on the part of the Trustee, be deemed to be
conclusively proved and established by an Officers' Certificate delivered to the
Trustee, and such certificate, in the absence of negligence or bad faith on the
part of the Trustee, shall be full warrant to the Trustee for any action taken
or omitted by it under the provisions of this Indenture upon the faith thereof.


                                       36
   43
SECTION 6.08. Conflicting Interest of Trustee.

                  If the Trustee has or shall acquire any "conflicting interest"
within the meaning of Section 310(b) of the Trust Indenture Act of 1939, the
Trustee and the Company shall in all respects comply with the provisions of
Section 310(b) of the Trust Indenture Act of 1939.

SECTION 6.09. Eligibility of Trustee.

                  The Trustee hereunder shall at all times be a corporation
organized and doing business under the laws of the United States of America or
any state or territory thereof or of the District of Columbia or a corporation
or other Person permitted to act as trustee by the Commission authorized under
such laws to exercise corporate trust powers, having a combined capital and
surplus of at least 50 million U.S. dollars ($50,000,000) and subject to
supervision or examination by federal, state, territorial, or District of
Columbia authority. If such corporation publishes reports of condition at least
annually, pursuant to law or to the requirements of the aforesaid supervising or
examining authority, then for the purposes of this Section 6.09 the combined
capital and surplus of such corporation shall be deemed to be its combined
capital and surplus as set forth in its most recent report of condition so
published.

                  The Company may not, nor may any Person directly or indirectly
controlling, controlled by, or under common control with the Company, serve as
Trustee.

                  In case at any time the Trustee shall cease to be eligible in
accordance with the provisions of this Section 6.09, the Trustee shall resign
immediately in the manner and with the effect specified in Section 6.10.

SECTION 6.10. Resignation or Removal of Trustee.

                  (a) The Trustee, or any trustee or trustees hereafter
appointed, may at any time resign by giving written notice of such resignation
to the Company and by mailing notice thereof to the holders of the Securities at
their addresses as they shall appear on the Security register. Upon receiving
such notice of resignation, the Company shall promptly appoint a successor
trustee or trustees by written instrument, in duplicate, one copy of which
instrument shall be delivered to the resigning Trustee and one copy to the
successor trustee. If no successor trustee shall have been so appointed and have
accepted appointment within 60 days after the mailing of such notice of
resignation to the affected Securityholders, the resigning Trustee may petition
any court of competent jurisdiction for the appointment of a successor trustee,
or any Securityholder who has been a bona fide holder of a Security for at least
six months may, subject to the provisions of Section 5.09, on behalf of himself
and all others similarly situated, petition any such court for the appointment
of a successor trustee. Such court may thereupon, after such notice, if any, as
it may deem proper and prescribe, appoint a successor trustee.

                  (b) In case at any time any of the following shall occur:

                           (i) the Trustee shall fail to comply with the
         provisions of Section 6.08 after written request therefor by the
         Company or by any Securityholder who has been a bona fide holder of a
         Security or Securities for at least six months, or


                                       37
   44
                           (ii) the Trustee shall cease to be eligible in
         accordance with the provisions of Section 6.09 and shall fail to resign
         after written request therefor by the Company or by any such
         Securityholder, or

                           (iii) the Trustee shall become incapable of acting,
         or shall be adjudged a bankrupt or insolvent, or a receiver of the
         Trustee or of its property shall be appointed, or any public officer
         shall take charge or control of the Trustee or of its property or
         affairs for the purpose of rehabilitation, conservation or liquidation,

then, in any such case, the Company may remove the Trustee and appoint a
successor trustee by written instrument, in duplicate, one copy of which
instrument shall be delivered to the Trustee so removed and one copy to the
successor trustee, or, subject to the provisions of Section 5.09, any
Securityholder who has been a bona fide holder of a Security for at least six
months may, on behalf of himself and all others similarly situated, petition any
court of competent jurisdiction for the removal of the Trustee and the
appointment of a successor trustee. Such court may thereupon, after such notice,
if any, as it may deem proper and prescribe, remove the Trustee and appoint a
successor trustee.

                  (c) The holders of a majority in principal amount of the
Securities at the time outstanding may at any time remove the Trustee and
nominate a successor trustee, which shall be deemed appointed as successor
trustee unless within 10 days after such nomination the Company objects thereto
or if no successor trustee shall have been so appointed and shall have accepted
appointment within 30 days after such removal, in which case the Trustee so
removed or any Securityholder, upon the terms and conditions and otherwise as in
subsection (a) of this Section 6.10 provided, may petition any court of
competent jurisdiction for an appointment of a successor trustee.

                  (d) Any resignation or removal of the Trustee and appointment
of a successor trustee pursuant to any of the provisions of this Section 6.10
shall become effective upon acceptance of appointment by the successor trustee
as provided in Section 6.11.

SECTION 6.11. Acceptance by Successor Trustee.

                  Any successor trustee appointed as provided in Section 6.10
shall execute, acknowledge and deliver to the Company and to its predecessor
trustee an instrument accepting such appointment hereunder, and thereupon the
resignation or removal of the retiring trustee shall become effective and such
successor trustee, without any further act, deed or conveyance, shall become
vested with all the rights, powers, duties and obligations of its predecessor
hereunder, with like effect as if originally named as trustee herein; but,
nevertheless, on the written request of the Company or of the successor trustee,
the trustee ceasing to act shall, upon payment of any amounts then due it
pursuant to the provisions of Section 6.06, execute and deliver an instrument
transferring to such successor trustee all the rights and powers of the trustee
so ceasing to act and shall duly assign, transfer and deliver to such successor
trustee all property and money held by such retiring trustee thereunder. Upon
request of any such successor trustee, the Company shall execute any and all
instruments in writing for more fully and certainly vesting in and confirming to
such successor trustee all such rights and powers. Any trustee ceasing to act
shall, nevertheless, retain a lien upon all property or funds held or


                                       38
   45
collected by such trustee to secure any amounts then due it pursuant to the
provisions of Section 6.06.

                  No successor trustee shall accept appointment as provided in
this Section 6.11 unless at the time of such acceptance such successor trustee
shall be qualified under the provisions of Section 6.08 and eligible under the
provisions of Section 6.09.

                  Upon acceptance of appointment by a successor trustee as
provided in this Section 6.11, the Company shall mail notice of the succession
of such trustee hereunder to the holders of Securities at their addresses as
they shall appear on the Security register. If the Company fails to mail such
notice within 10 Business Days after the acceptance of appointment by the
successor trustee, the successor trustee shall cause such notice to be mailed at
the expense of the Company.

SECTION 6.12. Succession by Merger, etc.

                  Any corporation into which the Trustee may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which the Trustee shall be a
party, or any corporation succeeding to all or substantially all of the
corporate trust business of the Trustee, shall be the successor of the Trustee
hereunder without the execution or filing of any paper or any further act on the
part of any of the parties hereto.

                  In case at the time such successor to the Trustee shall
succeed to the trusts created by this Indenture any Securities shall have been
authenticated but not delivered, any such successor to the Trustee may adopt the
certificate of authentication of any predecessor trustee, and deliver such
Securities so authenticated; and in case at that time any of the Securities
shall not have been authenticated, any successor to the Trustee may authenticate
such Securities either in the name of any predecessor hereunder or in the name
of the successor trustee; and in all such cases such certificates shall have the
full force which the Securities or this Indenture elsewhere provides that the
certificate of the Trustee shall have; provided, however, that the right to
adopt the certificate of authentication of any predecessor Trustee or
authenticate Securities in the name of any predecessor Trustee shall apply only
to its successor or successors by merger, conversion or consolidation.

SECTION 6.13. Limitation on Rights of Trustee as a Creditor.

                  The Trustee shall comply with Section 311(a) of the Trust
Indenture Act of 1939, excluding any creditor relationship described in Section
311(b) of the Trust Indenture Act of 1939. A Trustee who has resigned or been
removed shall be subject to Section 311(a) of the Trust Indenture Act of 1939 to
the extent included therein.

SECTION 6.14. Authenticating Agents.

                  There may be one or more Authenticating Agents appointed by
the Trustee upon the request of the Company with power to act on its behalf and
subject to its direction in the authentication and delivery of Securities issued
upon exchange or registration of transfer thereof as fully to all intents and
purposes as though any such Authenticating Agent had been expressly authorized
to authenticate and deliver Securities; provided, that the Trustee shall



                                       39
   46
have no liability to the Company for any acts or omissions of the Authenticating
Agent with respect to the authentication and delivery of Securities. Any such
Authenticating Agent shall at all times be a corporation organized and doing
business under the laws of the United States or of any state or territory
thereof or of the District of Columbia authorized under such laws to act as
Authenticating Agent, having a combined capital and surplus of at least
$50,000,000 and being subject to supervision or examination by federal, state,
territorial or District of Columbia authority. If such corporation publishes
reports of condition at least annually pursuant to law or the requirements of
such authority, then for the purposes of this Section 6.14 the combined capital
and surplus of such corporation shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at
any time an Authenticating Agent shall cease to be eligible in accordance with
the provisions of this Section, it shall resign immediately in the manner and
with the effect herein specified in this Section.

                  Any corporation into which any Authenticating Agent may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, consolidation or conversion to which any
Authenticating Agent shall be a party, or any corporation succeeding to the
corporate trust business of any Authenticating Agent, shall be the successor of
such Authenticating Agent hereunder, if such successor corporation is otherwise
eligible under this Section 6.14 without the execution or filing of any paper or
any further act on the part of the parties hereto or such Authenticating Agent.

                  Any Authenticating Agent may at any time resign by giving
written notice of resignation to the Trustee and to the Company. The Trustee may
at any time terminate the agency of any Authenticating Agent by giving written
notice of termination to such Authenticating Agent and to the Company. Upon
receiving such a notice of resignation or upon such a termination, or in case at
any time any Authenticating Agent shall cease to be eligible under this Section
6.14, the Trustee may, and upon the request of the Company shall, promptly
appoint a successor Authenticating Agent eligible under this Section 6.14, shall
give written notice of such appointment to the Company and shall mail notice of
such appointment to all Securityholders as the names and addresses of such
holders appear on the Security Register. Any successor Authenticating Agent upon
acceptance of its appointment hereunder shall become vested with all rights,
powers, duties and responsibilities of its predecessor hereunder, with like
effect as if originally named as Authenticating Agent herein.

                  The Company, as borrower, agrees to pay to any Authenticating
Agent from time to time reasonable compensation for its services. Any
Authenticating Agent shall have no responsibility or liability for any action
taken by it as such in accordance with the directions of the Trustee.



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                                  ARTICLE VII.

                         CONCERNING THE SECURITYHOLDERS

SECTION 7.01. Action by Securityholders.

                  Whenever in this Indenture it is provided that the holders of
a specified percentage in principal amount of the Securities at the time
outstanding may take any action (including the making of any demand or request,
the giving of any notice, consent or waiver or the taking of any other action)
the fact that at the time of taking any such action the holders of such
specified percentage have joined therein may be evidenced (a) by any instrument
or any number of instruments of similar tenor executed by such Securityholders
in person or by agent or proxy appointed in writing, or (b) by the record of
such holders of Securities voting in favor thereof at any meeting of such
Securityholders duly called and held in accordance with the provisions of
Article VIII, or (c) by a combination of such instrument or instruments and any
such record of such a meeting of such Securityholders.

                  If the Company shall solicit from the Securityholders any
request, demand, authorization, direction, notice, consent, waiver or other
action, the Company may, at its option, as evidenced by an Officers'
Certificate, fix in advance a record date for the determination of
Securityholders entitled to give such request, demand, authorization, direction,
notice, consent, waiver or other action, but the Company shall have no
obligation to do so. If such a record date is fixed, such request, demand,
authorization, direction, notice, consent, waiver or other action may be given
before or after the record date, but only the Securityholders of record at the
close of business on the record date shall be deemed to be Securityholders for
the purposes of determining whether Securityholders of the requisite proportion
of outstanding Securities have authorized or agreed or consented to such
request, demand, authorization, direction, notice, consent, waiver or other
action, and for that purpose the outstanding Securities shall be computed as of
the record date; provided, however, that no such authorization, agreement or
consent by such Securityholders on the record date shall be deemed effective
unless it shall become effective pursuant to the provisions of this Indenture
not later than six months after the record date.

SECTION 7.02. Proof of Execution by Securityholders.

                  Subject to the provisions of Section 6.01, 6.02 and 8.05,
proof of the execution of any instrument by a Securityholder or his agent or
proxy shall be sufficient if made in accordance with such reasonable rules and
regulations as may be prescribed by the Trustee or in such manner as shall be
satisfactory to the Trustee. The ownership of Securities shall be proved by the
Security Register or by a certificate of the Security registrar. The Trustee may
require such additional proof of any matter referred to in this Section as it
shall deem necessary.

                  The record of any Securityholders' meeting shall be proved in
the manner provided in Section 8.06.

SECTION 7.03. Who Are Deemed Absolute Owners.



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                  Prior to due presentment for registration of transfer of any
Security, the Company, the Trustee, any Authenticating Agent, any paying agent,
any transfer agent and any Security registrar may deem the Person in whose name
such Security shall be registered upon the Security Register to be, and may
treat him as, the absolute owner of such Security (whether or not such Security
shall be overdue) for the purpose of receiving payment of or on account of the
principal of and premium, if any, and, subject to Section 2.06, interest on such
Security and for all other purposes; and neither the Company nor the Trustee nor
any Authenticating Agent nor any paying agent nor any transfer agent nor any
Security registrar shall be affected by any notice to the contrary. All such
payments so made to any holder for the time being or upon his order shall be
valid, and, to the extent of the sum or sums so paid, effectual to satisfy and
discharge the liability for moneys payable upon any such Security.

SECTION 7.04. Securities Owned by Company Deemed Not Outstanding.

                  In determining whether the holders of the requisite principal
amount of Securities at the time outstanding have concurred in any direction,
consent or waiver under this Indenture, Securities which are owned by the
Company or any other obligor on the Securities or by any person directly or
indirectly controlling or controlled by or under direct or indirect common
control with the Company or any other obligor on the Securities shall be
disregarded and deemed not to be outstanding for the purpose of any such
determination; provided, that for the purposes of determining whether the
Trustee shall be protected in relying on any such direction, consent or waiver,
only Securities which the Trustee actually knows are so owned shall be so
disregarded. Securities so owned which have been pledged in good faith may be
regarded as outstanding for the purposes of this Section 7.04 if the pledgee
shall establish to the satisfaction of the Trustee the pledgee's right to vote
such Securities and that the pledgee is not the Company or any such other
obligor or person directly or indirectly controlling or controlled by or under
direct or indirect common control with the Company or any such other obligor. In
the case of a dispute as to such right, any decision by the Trustee taken upon
the advice of counsel shall be full protection to the Trustee.

SECTION 7.05. Revocation of Consents; Future Holders Bound.

                  At any time prior to (but not after) the evidencing to the
Trustee, as provided in Section 7.01, of the taking of any action by the holders
of the percentage in principal amount of the Securities at the time outstanding
specified in this Indenture in connection with such action, any holder of a
Security (or any Security issued in whole or in part in exchange or substitution
therefor) the serial number of which is shown by the evidence to be included in
the Securities the holders of which have consented to such action may, by filing
written notice with the Trustee at the principal office of the Trustee and upon
proof of holding as provided in Section 7.02, revoke such action so far as
concerns such Security (or so far as concerns the principal amount represented
by any exchanged or substituted Security). Except as aforesaid any such action
taken by the holder of any Security shall be conclusive and binding upon such
holder and upon all future holders and owners of such Security, and of any
Security issued in exchange or substitution therefor, irrespective of whether or
not any notation in regard thereto is made upon such Security or any Security
issued in exchange or substitution therefor.


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                                  ARTICLE VIII.

                            SECURITYHOLDERS' MEETINGS

SECTION 8.01. Purpose of Meetings.

                  A meeting of Securityholders may be called at any time and
from time to time pursuant to the provisions of this Article VIII for any of the
following purposes:

                  (a) to give any notice to the Company or to the Trustee, or to
         give any directions to the Trustee, or to consent to the waiving of any
         Default hereunder and its consequences, or to take any other action
         authorized to be taken by Securityholders pursuant to any of the
         provisions of Article V;

                  (b) to remove the Trustee and nominate a successor trustee
         pursuant to the provisions of Article VI;

                  (c) to consent to the execution of an indenture or indentures
         supplemental hereto pursuant to the provisions of Section 9.02; or

                  (d) to take any other action authorized to be taken by or on
         behalf of the holders of any specified principal amount of such
         Securities at the time outstanding under any other provision of this
         Indenture or under applicable law.

SECTION 8.02. Call of Meetings by Trustee.

                  The Trustee may at any time call a meeting of Securityholders
to take any action specified in Section 8.01, to be held at such time and at
such place in the Borough of Manhattan, The City of New York, as the Trustee
shall determine. Notice of every meeting of the Securityholders, setting forth
the time and the place of such meeting and in general terms the action proposed
to be taken at such meeting, shall be mailed to holders of Securities at their
addresses as they shall appear on the Securities Register. Such notice shall be
mailed not less than 20 nor more than 180 days prior to the date fixed for the
meeting.

SECTION 8.03. Call of Meetings by Company or Securityholders.

                  In case at any time the Company pursuant to a Board
Resolution, or the holders of at least 10% in principal amount of the Securities
at the time outstanding, shall have requested the Trustee to call a meeting of
Securityholders, by written request setting forth in reasonable detail the
action proposed to be taken at the meeting, and the Trustee shall not have
mailed the notice of such meeting within 20 days after receipt of such request,
then the Company or such Securityholders may determine the time and the place in
the Borough of Manhattan, The City of New York for such meeting and may call
such meeting to take any action authorized in Section 8.01, by mailing notice
thereof as provided in Section 8.02.

SECTION 8.04. Qualifications for Voting.



                                       43
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                  To be entitled to vote at any meeting of Securityholders a
Person shall (a) be a holder of one or more Securities or (b) a Person appointed
by an instrument in writing as proxy by a holder of one or more Securities. The
only Persons who shall be entitled to be present or to speak at any meeting of
Securityholders shall be the Persons entitled to vote at such meeting and their
counsel and any representatives of the Trustee and its counsel and any
representatives of the Company and its counsel.

SECTION 8.05. Regulations.

                  (a) Notwithstanding any other provisions of this Indenture,
the Trustee may make such reasonable regulations as it may deem advisable for
any meeting of Securityholders, in regard to proof of the holding of Securities
and of the appointment of proxies, and in regard to the appointment and duties
of inspectors of votes, the submission and examination of proxies, certificates
and other evidence of the right to vote, and such other matters concerning the
conduct of the meeting as it shall think fit.

                  (b) The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by Securityholders as provided in Section 8.03, in which case the
Company or the Securityholders calling the meeting, as the case may be, shall in
like manner appoint a temporary chairman. A permanent chairman and a permanent
secretary of the meeting shall be elected by majority vote of the meeting.

                  (c) Subject to the provisions of Section 8.04, at any meeting
each holder of Securities or proxy therefor shall be entitled to one vote for
each $1,000 principal amount of Securities held or represented by him; provided,
however, that no vote shall be cast or counted at any meeting in respect of any
Security challenged as not outstanding and ruled by the chairman of the meeting
to be not outstanding. The chairman of the meeting shall have no right to vote
other than by virtue of Securities held by him or instruments in writing as
aforesaid duly designating him as the Person to vote on behalf of other
Securityholders. Any meeting of Securityholders duly called pursuant to the
provisions of Section 8.02 or 8.03 may be adjourned from time to time by a
majority of those present, whether or not constituting a quorum, and the meeting
may be held as so adjourned without further notice.

                  (d) The Persons entitled to vote a majority in principal
amount of the outstanding Securities shall constitute a quorum for a meeting of
holders of Securities; provided, however, that if any action is to be taken at
such meeting with respect to a consent, waiver, request, demand, notice,
authorization, direction or other action which may be given by the holders of
not less than a specified percentage in principal amount of the outstanding
Securities, the Persons holding or representing such specified percentage in
principal amount of the outstanding Securities will constitute a quorum. In the
absence of a quorum within 30 minutes of the time appointed for any such
meeting, the meeting shall, if convened at the request of holders of Securities,
be dissolved. In any other case the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting. In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior the
adjournment of such adjourned meeting. Notice of the reconvening of any
adjourned meeting shall be given as provided in Section 8.02, except that such
notice need be given only once not less than five days prior the date on which



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the meeting is scheduled to be reconvened. Notice of the reconvening of an
adjourned meeting shall state expressly the percentage, as provided above, of
the principal amount of the outstanding Securities which shall constitute a
quorum.

                  (e) Except as limited by the first proviso to the first
paragraph of Section 9.02 or any other provision hereof granting rights to
holders of Capital Securities, any resolution presented to a meeting or
adjourned meeting duly reconvened at which a quorum is present as aforesaid may
be adopted by the affirmative vote of the holders of a majority in principal
amount of the outstanding Securities; provided, however, that, except as limited
by the first proviso to the first paragraph of Section 9.02 or any other
provision hereof granting any rights to holders of Capital Securities, any
resolution with respect to any consent, waiver, request, demand, notice,
authorization, direction or other action which this Indenture expressly provides
may be given by the holders of not less than a specified percentage in principal
amount of the outstanding Securities may be adopted at a meeting or an adjourned
meeting duly reconvened and at which a quorum is present as aforesaid only by
the affirmative vote of the holders of not less than such specified percentage
in principal amount of the outstanding Securities.

                  (f) Any resolution passed or decision taken at any meeting of
holders of Securities duly held in accordance with this Section shall be binding
on all the holders of Securities whether or not present or represented at the
meeting.

SECTION 8.06. Voting.

                  The vote upon any resolution submitted to any meeting of
holders of Securities shall be by written ballots on which shall be subscribed
the signatures of such holders or of their representatives by proxy and the
serial number or numbers of the Securities held or represented by them. The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in triplicate of all votes cast at the meeting. A record in duplicate of
the proceedings of each meeting of Securityholders shall be prepared by the
secretary of the meeting and there shall be attached to said record the original
reports of the inspectors of votes on any vote by ballot taken thereat and
affidavits by one or more persons having knowledge of the facts setting forth a
copy of the notice of the meeting and showing that said notice was mailed as
provided in Section 8.02. The record shall show the serial numbers of the
Securities voting in favor of or against any resolution. The record shall be
signed and verified by the affidavits of the permanent chairman and secretary of
the meeting and one of the duplicates shall be delivered to the Company and the
other to the Trustee to be preserved by the Trustee, the latter to have attached
thereto the ballots voted at the meeting. The holders of the Initial Securities
and the Exchange Securities shall vote for all purposes as a single class.

                  Any record so signed and verified shall be conclusive evidence
of the matters therein stated.


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                                   ARTICLE IX.

                                   AMENDMENTS

SECTION 9.01. Without Consent of Securityholders.

                  The Company and the Trustee may from time to time and at any
time amend this Indenture, without the consent of the Securityholders, for one
or more of the following purposes:

                  (a) to evidence the succession of another corporation to the
         Company, or successive successions, and the assumption by the successor
         corporation of the covenants, agreements and obligations of the Company
         pursuant to Article X hereof;

                  (b) to add to the covenants of the Company such further
         covenants, restrictions or conditions for the protection of the
         Securityholders as the Board of Directors and the Trustee shall
         consider to be for the protection of the Securityholders, and to make
         the occurrence, or the occurrence and continuance, of a Default in any
         of such additional covenants, restrictions or conditions a Default or
         an Event of Default permitting the enforcement of all or any of the
         remedies provided in this Indenture as herein set forth; provided,
         however, that in respect of any such additional covenant, restriction
         or condition, such amendment may provide for a particular period of
         grace after Default (which period may be shorter or longer than that
         allowed in the case of other Defaults) or may provide for an immediate
         enforcement upon such Default or may limit the remedies available to
         the Trustee upon such Default;

                  (c) to provide for the issuance under this Indenture of
         Securities in coupon form if allowed by law (including Securities
         registrable as to principal only) and to provide for exchangeability of
         such Securities with the Securities issued hereunder in fully
         registered form and to make all appropriate changes for such purpose;

                  (d) to cure any ambiguity or to correct or supplement any
         provision contained herein or in any supplemental indenture which may
         be defective or inconsistent with any other provision contained herein
         or in any supplemental indenture, or to make such other provisions in
         regard to matters or questions arising under this Indenture; provided,
         that any such action shall not materially adversely affect the
         interests of the holders of the Securities;

                  (e) to evidence and provide for the acceptance of appointment
         hereunder by a successor trustee with respect to the Securities;

                  (f) to make provision for transfer procedures, certification,
         book-entry provisions, the form of restricted securities legends, if
         any, to be placed on Securities, and all other matters required
         pursuant to Section 2.07 or otherwise necessary, desirable or
         appropriate in connection with the issuance of Securities to holders of
         Capital Securities in the event of a distribution of Securities by
         Trenwick Capital Trust I following a Dissolution Event;



                                       46
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                  (g) to qualify or maintain qualification of this Indenture
         under the Trust Indenture Act of 1939; or

                  (h) to make any change that does not adversely affect the
         rights of any Securityholder in any material respect.

                  The Trustee is hereby authorized to join with the Company in
the execution of any supplemental indenture to effect such amendment, to make
any further appropriate agreements and stipulations which may be therein
contained and to accept the conveyance, transfer and assignment of any property
thereunder, but the Trustee shall not be obligated to, but may in its
discretion, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

                  Any amendment to this Indenture authorized by the provisions
of this Section 9.01 may be executed by the Company and the Trustee without the
consent of the holders of any of the Securities at the time outstanding,
notwithstanding any of the provisions of Section 9.02.

SECTION 9.02.  With Consent of Securityholders.

                  (a) With the consent (evidenced as provided in Section 7.01)
of the holders of a majority in principal amount of the Securities at the time
outstanding, the Company, when authorized by a Board Resolution, and the Trustee
may from time to time and at any time amend this Indenture for the purpose of
adding any provisions to or changing in any manner or eliminating any of the
provisions of this Indenture or of modifying in any manner the rights of the
holders of the Securities; provided, however, that no such amendment shall
without the consent of the holders of each Security then outstanding and
affected hereby (i) extend the Stated Maturity of any Security, or reduce the
rate or extend the time of payment of interest thereon (except as contemplated
by Article XVI), or reduce the principal amount thereof, or reduce any amount
payable on prepayment thereof, or make the principal thereof or any interest or
premium thereon payable in any coin or currency other than that provided in the
Securities, or impair or affect the right of any Securityholder to institute
suit for payment thereof, or (ii) reduce the aforesaid percentage of Securities
the holders of which are required to consent to any such amendment to this
Indenture; provided, however, that if the Securities are held by Trenwick
Capital Trust I, such amendment shall not be effective until the holders of a
majority in liquidation amount of Trust Securities shall have consented to such
amendment; provided, further, that if the consent of the holder of each
outstanding Security is required, such amendment shall not be effective until
each holder of the Trust Securities shall have consented to such amendment.

                  (b) Upon the request of the Company accompanied by a Board
Resolution authorizing the execution of any supplemental indenture affecting
such amendment, and upon the filing with the Trustee of evidence of the consent
of Securityholders as aforesaid, the Trustee shall join with the Company in the
execution of such supplemental indenture unless such supplemental indenture
affects the Trustee's own rights, duties or immunities under this Indenture or
otherwise, in which case the Trustee may in its discretion, but shall not be
obligated to, enter into such supplemental indenture.





                                       47
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                  (c) Promptly after the execution by the Company and the
Trustee of any supplemental indenture pursuant to the provisions of this
Section, the Trustee shall transmit by mail, first class postage prepaid, a
notice, prepared by the Company, setting forth in general terms the substance of
such supplemental indenture, to the Securityholders as their names and addresses
appear upon the Security Register. Any failure of the Trustee to mail such
notice, or any defect therein, shall not, however, in any way impair or affect
the validity of any such supplemental indenture.

                  (d) It shall not be necessary for the consent of the
Securityholders under this Section 9.02 to approve the particular form of any
proposed supplemental indenture, but it shall be sufficient if such consent
shall approve the substance thereof.

SECTION 9.03. Compliance with Trust Indenture Act of 1939; Effect of
              Supplemental Indentures.

                  Any supplemental indenture executed pursuant to the provisions
of this Article IX shall comply with the Trust Indenture Act of 1939. Upon the
execution of any supplemental indenture pursuant to the provisions of this
Article IX, this Indenture shall be and be deemed to be modified and amended in
accordance therewith and the respective rights, limitations of rights,
obligations, duties and immunities under this Indenture of the Trustee, the
Company and the holders of Securities shall thereafter be determined, exercised
and enforced hereunder, subject in all respects to such modifications and
amendments, and all the terms and conditions of any such supplemental indenture
shall be and be deemed to be part of the terms and conditions of this Indenture
for any and all purposes.

SECTION 9.04. Notation on Securities.

                  Securities authenticated and delivered after the execution of
any supplemental indenture affecting such series pursuant to the provisions of
this Article IX may bear a notation in form approved by the Trustee as to any
matter provided for in such supplemental indenture. If the Company or the
Trustee shall so determine, new Securities so modified as to conform, in the
opinion of the Trustee and the Board of Directors, to any modification of this
Indenture contained in any such supplemental indenture may be prepared and
executed by the Company, authenticated by the Trustee or the Authenticating
Agent and delivered in exchange for the Securities then outstanding.

SECTION 9.05. Evidence of Compliance of Supplemental Indenture to be Furnished
              to Trustee.

                  (a) The Trustee, subject to the provisions of Sections 6.01
and 6.02, may receive an Officers' Certificate and an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant hereto
complies with the requirements of this Article IX.

                  (b) The Trustee may receive an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant to this
Article is authorized or permitted by, and conforms to, the terms of this
Article and that it is proper for the Trustee under the provisions of this
Article to join in the execution thereof.


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                                   ARTICLE X.

                CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE

SECTION 10.01. Company May Consolidate, etc., on Certain Terms.

                  Nothing contained in this Indenture or in any of the
Securities shall prevent any consolidation or merger of the Company with or into
any other Person (whether or not affiliated with the Company, as the case may
be), or successive consolidations or mergers in which the Company or its
successor or successors shall be a party or parties, or shall prevent any sale,
conveyance, transfer or lease of the property of the Company or its successor or
successors as an entirety, or substantially as an entirety, to any other Person
(whether or not affiliated with the Company or its successor or successors)
authorized to acquire and operate the same; provided, that (a) the Company is
the surviving Person or the Person formed by or surviving any such consolidation
or merger (if other than the Company) or the Person to which such sale,
conveyance, transfer or lease of property is made is a Person organized and
existing under the laws of the United States or any State thereof or the
District of Columbia, and (b) upon any such consolidation, merger, sale,
conveyance, transfer or lease, the due and punctual payment of the principal of
(and premium, if any) and interest on the Securities according to their tenor
and the due and punctual performance and observance of all the covenants and
conditions of this Indenture to be kept or performed by the Company shall be
expressly assumed, by supplemental indenture (which shall conform to the
provisions of the Trust Indenture Act of 1939, as then in effect) satisfactory
in form to the Trustee executed and delivered to the Trustee by the Person
formed by such consolidation, or into which the Company shall have been merged,
or by the Person which shall have acquired such property, and (c) after giving
effect to such consolidation, merger, sale, conveyance, transfer or lease, no
Default or Event of Default shall have occurred and be continuing.

SECTION 10.02. Successor Corporation to be Substituted for Company.

                  In case of any such consolidation, merger, conveyance or
transfer and upon the assumption by the successor corporation, by supplemental
indenture, executed and delivered to the Trustee and satisfactory in form to the
Trustee, of the due and punctual payment of the principal of (and premium, if
any) and interest on all of the Securities and the due and punctual performance
and observance of all of the covenants and conditions of this Indenture to be
performed or observed by the Company, such successor Person shall succeed to and
be substituted for the Company, with the same effect as if it had been named
herein as the party of the first part, and the Company thereupon shall be
relieved of any further liability or obligation hereunder or upon the
Securities. Such successor Person thereupon may cause to be signed, and may
issue either in its own name or in the name of Trenwick Group Inc., any or all
of the Securities issuable hereunder which theretofore shall not have been
signed by the Company and delivered to the Trustee or the Authenticating Agent;
and, upon the order of such successor Person instead of the Company and subject
to all the terms, conditions and limitations in this Indenture prescribed, the
Trustee or the Authenticating Agent shall authenticate and deliver any
Securities which previously shall have been signed and delivered by the officers
of the Company to the Trustee or the Authenticating Agent for authentication,
and any Securities which such successor Person thereafter shall cause to be
signed and delivered to the Trustee or the Authenticating Agent for that
purpose. All the Securities so


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issued shall in all respects have the same legal rank and benefit under this
Indenture as the Securities theretofore or thereafter issued in accordance with
the terms of this Indenture as though all of such Securities had been issued at
the date of the execution hereof.

SECTION 10.03. Opinion of Counsel to be Given Trustee.

                  The Trustee, subject to the provisions of Sections 6.01 and
6.02, may receive an Opinion of Counsel as conclusive evidence that any
consolidation, merger, sale, conveyance, transfer or lease, and any assumption,
permitted or required by the terms of this Article X, complies with the
provisions of this Article X.

                                   ARTICLE XI.

                     SATISFACTION AND DISCHARGE OF INDENTURE

SECTION 11.01. Discharge of Indenture.

                  When (a) the Company shall deliver to the Trustee for
cancellation all Securities theretofore authenticated (other than any Securities
which shall have been destroyed, lost or stolen and which shall have been
replaced or paid as provided in Section 2.08) and not theretofore cancelled, or
(b) all the Securities not theretofore cancelled or delivered to the Trustee for
cancellation shall have become due and payable, or are by their terms to become
due and payable within one year or are to be called for prepayment within one
year under arrangements satisfactory to the Trustee for the giving of notice of
prepayment, and the Company shall deposit or cause to be deposited with the
Trustee, in trust, funds sufficient to pay on the Stated Maturity or upon
prepayment all of the Securities (other than any Securities which shall have
been destroyed, lost or stolen and which shall have been replaced or paid as
provided in Section 2.08) not theretofore cancelled or delivered to the Trustee
for cancellation, including principal (and premium, if any) and interest due or
to become due to the Stated Maturity or prepayment date, as the case may be, but
excluding, however, the amount of any moneys for the payment of principal (or
premium, if any) or interest on the Securities (1) theretofore repaid to the
Company in accordance with the provisions of Section 11.04, or (2) paid to any
State or to the District of Columbia pursuant to its unclaimed property or
similar laws, and if in either case the Company shall also pay or cause to be
paid all other sums payable hereunder by the Company, then this Indenture shall
cease to be of further effect except for the provisions of Sections 2.02, 2.07,
2.08, 3.01, 3.02, 3.04, 6.06, 6.10 and 11.04 hereof, which shall survive until
such Securities shall mature and be paid. Thereafter, Sections 6.06, 6.10 and
11.04 shall survive, and the Trustee, on demand of the Company accompanied by
any Officers' Certificate and an Opinion of Counsel, to the effect that all
conditions to the satisfaction and discharge of this Indenture have been
satisfied, and at the cost and expense of the Company, shall execute proper
instruments acknowledging satisfaction of and discharging this Indenture, the
Company, however, hereby agreeing to reimburse the Trustee for any costs or
expenses thereafter reasonably and properly incurred by the Trustee in
connection with this Indenture or the Securities.



                                       50
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SECTION 11.02. Deposited Moneys and U.S. Government Obligations to be Held in
               Trust by Trustee.

                  Subject to the provisions of Section 11.04, all moneys and
U.S. Government Obligations deposited with the Trustee pursuant to Sections
11.01 or 11.05 shall be held in trust and applied by it to the payment, either
directly or through any paying agent (including the Company if acting as its own
paying agent), to the holders of the particular Securities for the payment of
which such moneys or U.S. Government Obligations have been deposited with the
Trustee, of all sums due and to become due thereon for principal (premium, if
any) and interest.

                  The Company shall pay and indemnify the Trustee against any
tax, fee or other charge imposed on or assessed against the U.S. Government
Obligations deposited pursuant to Section 11.05 or the principal and interest
received in respect thereof other than any such tax, fee or other charge which
by law is for the account of the holders of outstanding Securities.

SECTION 11.03. Paying Agent to Repay Moneys Held.

                  Upon the satisfaction and discharge of this Indenture all
moneys then held by any paying agent of the Securities (other than the Trustee)
shall, upon written demand of the Company, be repaid to it or paid to the
Trustee, and thereupon such paying agent shall be released from all further
liability with respect to such moneys.

SECTION 11.04. Return of Unclaimed Moneys.

                  Any moneys deposited with or paid to the Trustee or any paying
agent for payment of the principal of (or premium, if any, on) or interest on
Securities and not applied but remaining unclaimed by the holders of Securities
for two years after the date upon which the principal of (or premium, if any,
on) or interest on such Securities, as the case may be, shall have become due
and payable, shall be repaid to the Company by the Trustee or such paying agent
on written demand; and the holder of any of the Securities shall thereafter look
only to the Company for any payment which such holder may be entitled to collect
and all liability of the Trustee or such paying agent with respect to such
moneys shall thereupon cease.

SECTION 11.05. Defeasance Upon Deposit of Moneys or U.S. Government Obligations.

                  The Company shall be deemed to have been Discharged (as
defined below) from its obligations with respect to the Securities on the 91st
day after the applicable conditions set forth below have been satisfied with
respect to the Securities:

                  (a) The Company shall have deposited or caused to be deposited
         irrevocably with the Trustee or the Defeasance Agent (as defined below)
         as trust funds in trust, specifically pledged as security for, and
         dedicated solely to, the benefit of the holders of the Securities (i)
         money in an amount, or (ii) U.S. Government Obligations which through
         the payment of interest and principal in respect thereof in accordance
         with their terms will provide, not later than one Business Day before
         the due date of any payment, money in an amount, or (iii) a combination
         of (i) and (ii), sufficient, in the opinion (with respect to (ii) and
         (iii)) of


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         a nationally recognized firm of independent public accountants
         expressed in a written certification thereof delivered to the Trustee
         and the Defeasance Agent, if any, to pay and discharge each installment
         of principal of (and premium, if any) and interest on the outstanding
         Securities on the dates such installments of principal, premium or
         interest are due;

                  (b) if the Securities are then listed on any national
         securities exchange, the Company shall have delivered to the Trustee
         and the Defeasance Agent, if any, an Opinion of Counsel to the effect
         that the exercise of the option under this Section 11.05 would not
         cause such Securities to be delisted from such exchange;

                  (c) no Default or Event of Default with respect to the
         Securities shall have occurred and be continuing on the date of such
         deposit; and

                  (d) the Company shall have delivered to the Trustee and the
         Defeasance Agent, if any, an Opinion of Counsel to the effect that
         holders of the Securities will not recognize income, gain or loss for
         United States federal income tax purposes as a result of the exercise
         of the option under this Section 11.05 and will be subject to United
         States federal income tax in the same amount and in the same manner and
         at the same times as would have been the case if such option had not
         been exercised, and such opinion shall be accompanied by a private
         letter ruling to that effect received from the United States Internal
         Revenue Service or a revenue ruling pertaining to a comparable form of
         transaction to that effect published by the United States Internal
         Revenue Service.

                  "Discharged" means that the Company shall be deemed to have
paid and discharged the entire indebtedness represented by the Securities and to
have satisfied all the obligations under this Indenture relating to the
Securities (and the Trustee, at the expense of the Company, shall execute proper
instruments acknowledging the same), except (A) the rights of holders of
Securities to receive, from the trust fund described in clause (1) above,
payment of the principal of (and premium, if any) and the interest on the
Securities when such payments are due; (B) the Company's obligations with
respect to the Securities under Sections 2.07, 2.08, 5.02 and 11.04; and (C) the
rights, powers, trusts, duties and immunities of the Trustee hereunder.

                  "Defeasance Agent" means another financial institution which
is eligible to act as Trustee hereunder and which assumes all of the obligations
of the Trustee necessary to enable the Trustee to act hereunder. In the event
such a Defeasance Agent is appointed pursuant to this Section, the following
conditions shall apply:

                  (a) The Trustee shall have approval rights over the document
         appointing such Defeasance Agent and the document setting forth such
         Defeasance Agent's rights and responsibilities; and

                  (b) The Defeasance Agent shall provide verification to the
         Trustee acknowledging receipt of sufficient money and/or U.S.
         Government Obligations to meet the applicable conditions set forth in
         this Section 11.05.

SECTION 11.06. Reinstatement.





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                  If the Trustee or any Defeasance Agent is unable to apply any
money in accordance with Section 11.05 by reason of any legal proceeding or by
reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture and the Securities shall be revived and
reinstated as though no deposit had occurred pursuant to Section 11.05 until
such time as the Trustee or any Defeasance Agent is permitted to apply all such
money in accordance with Section 11.05.

                                  ARTICLE XII.

         IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS

SECTION 12.01. Indenture and Securities Solely Corporate Obligations.

                  No recourse for the payment of the principal of (or premium,
if any) or interest on any Security, or for any claim based thereon or otherwise
in respect thereof, and no recourse under or upon any obligation, covenant or
agreement of the Company in this Indenture, or in any Security, or because of
the creation of any indebtedness represented thereby, shall be had against any
incorporator, stockholder, officer, employee or director, as such, past, present
or future, of the Company or of any successor Person to the Company, either
directly or through the Company, any constitution, statute or rule of law, or by
the enforcement of any assessment or penalty or otherwise; it being expressly
understood that all such liability is hereby expressly waived and released as a
condition of, and as a consideration for, the execution of this Indenture and
the issue of the Securities.

                                  ARTICLE XIII.

                            MISCELLANEOUS PROVISIONS

SECTION 13.01. Successors.

                  All the covenants, stipulations, promises and agreements in
this Indenture contained by the Company shall bind its successors and assigns
whether so expressed or not.

SECTION 13.02. Official Acts by Successor Corporation.

                  Any act or proceeding by any provision of this Indenture
authorized or required to be done or performed by any board, committee or
officer of the Company shall and may be done and performed with like force and
effect by the like board, committee or officer of any corporation that shall at
the time be the lawful sole successor of the Company.

SECTION 13.03. Surrender of Company Powers.

                  The Company by instrument in writing executed by authority of
two-thirds (2/3) of its Board of Directors and delivered to the Trustee may
surrender any of the powers


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reserved to the Company, and thereupon such power so surrendered shall terminate
both as to the Company and as to any successor Person.

SECTION 13.04. Address for Notices, etc.

                  Any notice or demand which by any provision of this Indenture
is required or permitted to be given or served by the Trustee or by the holders
of Securities on the Company may be given or served by being deposited postage
prepaid by registered or certified mail in a post office letter box addressed
(until another address is filed by the Company with the Trustee for the purpose)
to the Company, Metro Center, One Station Place, Stamford, CT 06902, Attention:
Jane T. Wiznitzer, Vice President-Legal Affairs and Secretary. Any notice,
direction, request or demand by any Securityholder to or upon the Trustee shall
be deemed to have been sufficiently given or made, for all purposes, if given or
made in writing at the office of the Trustee, The Chase Manhattan Bank, 450 West
33rd Street, 15th Floor, New York, New York 10001, Attention: Global Trust
Services.

SECTION 13.05. Governing Law.

                  This Indenture and each Security shall be governed by and
construed and interpreted in accordance with the laws of the State of New York,
without regard to conflicts of laws principles thereof.

SECTION 13.06. Evidence of Compliance with Conditions Precedent.

                  Upon any application or demand by the Company to the Trustee
to take any action under any of the provisions of this Indenture, the Company
shall furnish to the Trustee an Officers' Certificate stating that in the
opinion of the signers all conditions precedent, if any, provided for in this
Indenture relating to the proposed action have been complied with and an Opinion
of Counsel stating that, in the opinion of such counsel, all such conditions
precedent have been complied with.

                  Each certificate or opinion provided for in this Indenture and
delivered to the Trustee with respect to compliance with a condition or covenant
provided for in this Indenture shall include (1) a statement that the Person
making such certificate or opinion has read such covenant or condition; (2) a
brief statement as to the nature and scope of the examination or investigation
upon which the statements or opinions contained in such certificate or opinion
are based; (3) a statement that, in the opinion of such Person, he has made such
examination or investigation as is necessary to enable him to express an
informed opinion as to whether or not such covenant or condition has been
complied with; and (4) a statement as to whether or not, in the opinion of such
Person, such condition or covenant has been complied with.

SECTION 13.07. Business Days.

                  In any case where the date of payment of principal of (or
premium, if any) or interest on the Securities will not be a Business Day, the
payment of such principal of (or premium, if any) or interest on the Securities
need not be made on such date but may be made on the next succeeding Business
Day, with the same force and effect as if made on the date of payment and no
interest shall accrue for the period from and after such date.



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SECTION 13.08. Trust Indenture Act of 1939 to Control.

                  If and to the extent that any provision of this Indenture
limits, qualifies or conflicts with another provision included in this Indenture
which is required to be included in this Indenture by any of Sections 310 to
317, inclusive, of the Trust Indenture Act of 1939, such required provision
shall control.

SECTION 13.09. Table of Contents, Headings, etc.

                  The table of contents and the titles and headings of the
articles and sections of this Indenture have been inserted for convenience of
reference only, are not to be considered a part hereof, and shall in no way
modify or restrict any of the terms or provisions hereof.

SECTION 13.10. Execution in Counterparts.

                  This Indenture may be executed in any number of counterparts,
each of which shall be an original, but such counterparts shall together
constitute but one and the same instrument.

SECTION 13.11. Separability.

                  In case any one or more of the provisions contained in this
Indenture or in the Securities shall for any reason be held to be invalid,
illegal or unenforceable in any respect, such invalidity, illegality or
unenforceability shall not affect any other provision of this Indenture or of
the Securities, but this Indenture and the Securities shall be construed as if
such invalid or illegal or unenforceable provision had never been contained
herein or therein.

SECTION 13.12. Assignment.

                  The Company will have the right at all times to assign any of
its rights or obligations under this Indenture to a direct or indirect wholly
owned Subsidiary of the Company, provided, that, in the event of any such
assignment, the Company will remain liable for all such obligations. Subject to
the foregoing, the Indenture is binding upon and inures to the benefit of the
parties thereto and their respective successors and assigns. This Indenture may
not otherwise be assigned by the parties hereto.

SECTION 13.13. Acknowledgment of Rights.

                  The Company acknowledges that, with respect to any Securities
held by Trenwick Capital Trust I or a trustee of such trust, if the Property
Trustee of such trust fails to enforce its rights under this Indenture as the
holder of the Securities held as the assets of Trenwick Capital Trust I, any
holder of Capital Securities may institute legal proceedings directly against
the Company to enforce such Property Trustee's rights under this Indenture
without first instituting any legal proceedings against such Property Trustee or
any other Person. Notwithstanding the foregoing, if an Event of Default has
occurred and is continuing and such event is attributable to the failure of the
Company to pay principal of (or premium, if any) or interest on the Securities
when due, the Company acknowledges that a holder of Capital Securities may
directly institute a proceeding for enforcement of payment to such


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holder of the principal of (or premium, if any) or interest on the Securities
having a principal amount equal to the aggregate liquidation amount of the
Capital Securities of such holder on or after the respective due date specified
in the Securities.

                                  ARTICLE XIV.

                     CONDITIONAL RIGHT TO SHORTEN MATURITY;
                  PREPAYMENT OF SECURITIES -- NO SINKING FUND

SECTION 14.01. Special Event Prepayment.

                  If a Special Event has occurred and is continuing, then the
Company shall have the right, notwithstanding Section 14.02(a) but subject to
Section 14.02(b), upon (i) not less than 45 days written notice to the Trustee
and (ii) not less than 30 days nor more than 60 days written notice to the
Securityholders, to prepay the Securities, in whole (but not in part), at any
time within 90 days following the occurrence of such Special Event, at the
Special Event Prepayment Price. Following a Special Event, if the Company elects
to effect a prepayment, the Company shall take such action as is necessary
promptly to determine the Special Event Prepayment Price, including without
limitation the appointment by the Company of a Quotation Agent. The Special
Event Prepayment Price shall be paid prior to 12:00 noon, New York City time, on
the date of such prepayment or such earlier time as the Company determines,
provided, that the Company shall deposit with the Trustee an amount sufficient
to pay the Special Event Prepayment Price by 10:00 a.m., New York City time, on
the date such Special Event Prepayment Price is to be paid.

SECTION 14.02. Optional Prepayment by Company.

                  (a) Subject to the provisions of this Article XIV, the Company
shall have the right to prepay the Securities, in whole or in part, from time to
time, on or after February 1, 2007, at the optional prepayment price equal to
the outstanding principal amount of the Securities to be prepaid, plus accrued
and unpaid interest thereon (including Compounded Interest and Additional
Interest, if any) and any Additional Sums to the applicable date of prepayment
(the "Optional Prepayment Price").

                  If the Securities are only partially prepaid pursuant to this
Section 14.02, the Securities to be prepaid will be chosen pro rata or by lot or
by any other method utilized by the Trustee; provided, that, as to Securities
registered as a Global Security at the time of prepayment, the Depositary shall
determine, in accordance with its procedures, the principal amount of such
Securities held by each beneficial owner of such Securities to be prepaid. The
Optional Prepayment Price shall be paid prior to 12:00 noon, New York City time,
on the date of such prepayment or at such earlier time as the Company
determines, provided, that the Company shall deposit with the Trustee an amount
sufficient to pay the Optional Prepayment Price by 10:00 a.m., New York time, on
the date such Optional Prepayment Price is to be paid.

                  (b) Notwithstanding the first sentence of Section 14.02(a),
upon the entry of an order for dissolution of Trenwick Capital Trust I by a
court of competent jurisdiction, the Securities thereafter will be subject to
optional prepayment, in whole only, but



                                       56
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not in part, on or after February 1, 2007, at the optional prepayment price set
forth in Section 14.02(a) and otherwise in accordance with this Article XIV.

SECTION 14.03. No Sinking Fund.

                  The Securities are not entitled to the benefit of any sinking
fund.

SECTION 14.04. Notice of Prepayment; Selection of Securities.

                  In case the Company shall desire to exercise the right to
prepay all, or, as the case may be, any part of the Securities in accordance
with their terms, it shall fix a date for prepayment and shall mail a notice of
such prepayment at least 30 and not more than 60 days prior to the date fixed
for prepayment to the holders of Securities so to be prepaid as a whole or in
part at their last addresses as the same appear on the Security Register. Such
mailing shall be by first class mail. The notice if mailed in the manner herein
provided shall be conclusively presumed to have been duly given, whether or not
the holder receives such notice. In any case, failure to give such notice by
mail or any defect in the notice to the holder of any Security designated for
prepayment as a whole or in part shall not affect the validity of the
proceedings for the prepayment of any other Security.

                  Each such notice of prepayment shall specify the CUSIP number
of the Securities to be prepaid, the date fixed for prepayment, the prepayment
price at which the Securities are to be prepaid (or the method by which such
prepayment price is to be calculated), the place or places of payment that
payment will be made upon presentation and surrender of the Securities, that
interest accrued to the date fixed for prepayment will be paid as specified in
said notice, and that on and after said date interest thereon or on the portions
thereof to be prepaid will cease to accrue. If less than all the Securities are
to be prepaid the notice of prepayment shall specify the numbers of the
Securities to be prepaid. In case any Security is to be prepaid in part only,
the notice of prepayment shall state the portion of the principal amount thereof
to be prepaid and shall state that on and after the date fixed for prepayment,
upon surrender of such Security, a new Security or Securities in principal
amount equal to the unprepaid portion thereof will be issued.

                  Prior to 10:00 a.m., New York City time, on the prepayment
date specified in the notice of prepayment given as provided in this Section,
the Company will deposit with the Trustee or with one or more paying agents an
amount of money sufficient to prepay on the prepayment date all the Securities
so called for prepayment at the appropriate Prepayment Price, together with
accrued interest to the date fixed for prepayment.

                  The Company will give the Trustee notice not less than 45 days
prior to the prepayment date as to the aggregate principal amount of Securities
to be prepaid and the Trustee shall select, in such manner as in its sole
discretion it shall deem appropriate and fair, the Securities or portions
thereof (in integral multiples of $1,000, except as otherwise set forth in the
applicable form of Security) to be prepaid.

SECTION 14.05. Payment of Securities Called for Prepayment.

                  If notice of prepayment has been given as provided in Section
14.04, the Securities or portions of Securities with respect to which such
notice has been given shall


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become due and payable on the date and at the place or places stated in such
notice at the applicable Prepayment Price, together with interest accrued to the
date fixed for prepayment (subject to the rights of holders of Securities on the
close of business on a Regular Record Date in respect of an Interest Payment
Date occurring on or prior to the prepayment date), and on and after said date
(unless the Company shall default in the payment of such Securities at the
Prepayment Price, together with interest accrued to said date) interest on the
Securities or portions of Securities so called for prepayment shall cease to
accrue. On presentation and surrender of such Securities at a place of payment
specified in said notice, the said Securities or the specified portions thereof
shall be paid and prepaid by the Company at the applicable Prepayment Price,
together with interest accrued thereon to the date fixed for prepayment (subject
to the rights of holders of Securities on the close of business on a Regular
Record Date in respect of an Interest Payment Date occurring on or prior to the
prepayment date).

                  Upon presentation of any Security prepaid in part only, the
Company shall execute and the Trustee shall authenticate and make available for
delivery to the holder thereof, at the expense of the Company, a new Security or
Securities of authorized denominations, in principal amount equal to the
unprepaid portion of the Security so presented.

SECTION 14.06. Conditional Right to Shorten Maturity.

                  If a Tax Event occurs, then the Company will have the right,
prior to the termination of the Trust, either (i) to shorten the Stated Maturity
of the Securities to the minimum extent required, but not to a date earlier than
20 years from the date of original issuance of Securities under this Indenture,
such that, in the written opinion of counsel experienced in such matters
delivered to the Company, after shortening the Stated Maturity, interest paid on
the Securities shall be deductible for federal income tax purposes (the action
referred to above being referred to herein as a "Tax Event Maturity Shortening")
or (ii) to prepay the Securities. The circumstances under which the Company has
the right to prepay the Securities in connection with a Tax Event is referred to
herein as a "Conditional Tax Redemption Event" and, since a Conditional Tax
Redemption Event is deemed to be a Special Event, the Securities shall then be
subject to prepayment in accordance with the provisions of Section 14.01.

                                   ARTICLE XV.

                           SUBORDINATION OF SECURITIES

SECTION 15.01. Agreement to Subordinate.

                  The Company covenants and agrees, and each holder of
Securities issued hereunder likewise covenants and agrees, that the Securities
shall be issued subject to the provisions of this Article XV; and each holder of
a Security, whether upon original issue or upon transfer or assignment thereof,
accepts and agrees to be bound by such provisions.

                  The payment by the Company of the principal of (and premium,
if any) and interest on all Securities issued hereunder shall, to the extent and
in the manner hereinafter set forth, be subordinated and junior in right of
payment to the prior payment in full of the Senior Indebtedness, whether
outstanding at the date of this Indenture or thereafter incurred.




                                       58
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                  No provision of this Article XV shall prevent the occurrence
of any Default or Event of Default hereunder.

SECTION 15.02. Default on Senior Indebtedness.

                  In the event and during the continuation of any default by the
Company in the payment of principal, premium, interest or any other payment due
on any Senior Indebtedness, or in the event that the maturity of any Senior
Indebtedness has been accelerated because of a default, or if any judicial
proceeding shall be pending with respect to any such default, then, in any case,
no payment shall be made by the Company with respect to the principal (including
prepayment) of or premium, if any, or interest on the Securities.

                  In the event of the acceleration of the maturity of the
Securities, then no payment shall be made by the Company with respect to the
principal (including prepayments) of or premium, if any, or interest on the
Securities until the holders of all Senior Indebtedness outstanding at the time
of such acceleration shall receive payment in full of all amounts due in respect
of such Senior Indebtedness (including any amounts due upon acceleration).

                  In the event that, notwithstanding the foregoing, any payment
shall be received by the Trustee when such payment is prohibited by the
preceding paragraph of this Section 15.02, such payment shall be held in trust
for the benefit of, and shall be paid over or delivered to, the holders of
Senior Indebtedness or their respective representatives, or to the trustee or
trustees under any indenture pursuant to which any of such Senior Indebtedness
may have been issued, as their respective interests may appear, but only to the
extent of the amounts due in respect of such Senior Indebtedness and only to the
extent that the holders of the Senior Indebtedness (or their representative or
representatives or a trustee) notify the Trustee in writing, within 90 days of
such payment, of the amounts then due and owing on such Senior Indebtedness and
only the amounts specified in such notice to the Trustee shall be paid to the
holders of such Senior Indebtedness.

SECTION 15.03. Liquidation; Dissolution; Bankruptcy.

                  Upon any payment by the Company or distribution of assets of
the Company of any kind or character, whether in cash, property or securities,
to creditors upon any dissolution or winding-up or liquidation or reorganization
of the Company, whether voluntary or involuntary or in bankruptcy, insolvency,
receivership or other proceedings, all amounts due upon all Senior Indebtedness
of the Company shall first be paid in full, or payment thereof provided for in
money in accordance with its terms, before any payment is made by the Company on
account of the principal (and premium, if any) or interest on the Securities;
and upon any such dissolution or winding-up or liquidation or reorganization,
any payment by the Company, or distribution of assets of the Company of any kind
or character, whether in cash, property or securities, to which the
Securityholders or the Trustee would be entitled to receive from the Company,
except for the provisions of this Article XV, shall be paid by the Company or by
any receiver, trustee in bankruptcy, liquidating trustee, agent or other Person
making such payment or distribution, or by the Securityholders or by the Trustee
under this Indenture if received by them or it, directly to the holders of
Senior Indebtedness of the Company (pro rata to such holders on the basis of the
respective amounts of Senior Indebtedness held by such holders, as calculated by
the Company) or their representative or representatives, or to the trustee or
trustees under any indenture pursuant to which any



                                       59
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instruments evidencing such Senior Indebtedness may have been issued, as their
respective interests may appear, to the extent necessary to pay such Senior
Indebtedness in full, in money or money's worth, after giving effect to any
concurrent payment or distribution to or for the holders of such Senior
Indebtedness, before any payment or distribution is made to the Securityholders
or to the Trustee.

                  In the event that, notwithstanding the foregoing, any payment
or distribution of assets of the Company of any kind or character, whether in
cash, property or securities, prohibited by the foregoing, shall be received by
the Trustee before all amounts in respect of Senior Indebtedness is paid in
full, or provision is made for such payment in money in accordance with its
terms, such payment or distribution shall be held in trust for the benefit of
and shall be paid over or delivered to the holders of such Senior Indebtedness
or their representative or representatives, or to the trustee or trustees under
any indenture pursuant to which any instruments evidencing such Senior
Indebtedness may have been issued, and their respective interests may appear, as
calculated by the Company, for application to the payment of all Senior
Indebtedness remaining unpaid to the extent necessary to pay all amounts due in
respect of such Senior Indebtedness in full in money in accordance with its
terms, after giving effect to any concurrent payment or distribution to or for
the benefit of the holders of such Senior Indebtedness.

                  For purposes of this Article XV, the words "cash, property or
securities" shall not be deemed to include shares of stock of the Company as
reorganized or readjusted, or securities of the Company or any other corporation
provided for by a plan of reorganization or readjustment, the payment of which
is subordinated at least to the extent provided in this Article XV with respect
to the Securities to the payment of Senior Indebtedness that may at the time be
outstanding, provided, that (i) such Senior Indebtedness is assumed by the new
corporation, if any, resulting from any such reorganization or readjustment, and
(ii) the rights of the holders of such Senior Indebtedness are not, without the
consent of such holders, altered by such reorganization or readjustment. The
consolidation of the Company with, or the merger of the Company into, another
Person or the liquidation or dissolution of the Company following the sale,
conveyance, transfer or lease of its property as an entirety, or substantially
as an entirety, to another Person upon the terms and conditions provided for in
Article X of this Indenture shall not be deemed a dissolution, winding-up,
liquidation or reorganization for the purposes of this Section 15.03 if such
other Person shall, as a part of such consolidation, merger, sale, conveyance,
transfer or lease, comply with the conditions stated in Article X of this
Indenture. Nothing in Section 15.02 or in this Section 15.03 shall apply to
claims of, or payments to, the Trustee under or pursuant to Section 6.06 of this
Indenture.

SECTION 15.04. Subrogation.

                  Subject to the payment in full of all amounts due in respect
of Senior Indebtedness, the rights of the Securityholders shall be subrogated to
the rights of the holders of such Senior Indebtedness to receive payments or
distributions of cash, property or securities of the Company, as the case may
be, applicable to such Senior Indebtedness until the principal of (and premium,
if any) and interest on the Securities shall be paid in full; and, for the
purposes of such subrogation, no payments or distributions to the holders of
such Senior Indebtedness of any cash, property or securities to which the
Securityholders or the Trustee would be entitled except for the provisions of
this Article XV, and no payment over pursuant to the provisions of this Article
XV to or for the benefit of the holders of such Senior


                                       60
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Indebtedness by Securityholders or the Trustee, shall, as between the Company,
its creditors other than holders of Senior Indebtedness of the Company, and the
holders of the Securities, be deemed to be a payment by the Company to or on
account of such Senior Indebtedness. It is understood that the provisions of
this Article XV are and are intended solely for the purposes of defining the
relative rights of the holders of the Securities, on the one hand, and the
holders of such Senior Indebtedness, on the other hand.

                  Nothing contained in this Article XV or elsewhere in this
Indenture or in the Securities is intended to or shall impair, as between the
Company, its creditors other than the holders of Senior Indebtedness of the
Company, and the holders of the Securities, the obligation of the Company, which
is absolute and unconditional, to pay to the holders of the Securities the
principal of (and premium, if any) and interest on the Securities as and when
the same shall become due and payable in accordance with their terms, or is
intended to or shall affect the relative rights of the holders of the Securities
and creditors of the Company, as the case may be, other than the holders of
Senior Indebtedness of the Company, as the case may be, nor shall anything
herein or therein prevent the Trustee or the holder of any Security from
exercising all remedies otherwise permitted by applicable law upon a Default
under this Indenture, subject to the rights, if any, under this Article XV of
the holders of such Senior Indebtedness in respect of cash, property or
securities of the Company, as the case may be, received upon the exercise of any
such remedy.

                  Upon any payment or distribution of assets of the Company
referred to in this Article XV, the Trustee, subject to the provisions of
Article VI of this Indenture, and the Securityholders shall be entitled
conclusively to rely upon any order or decree made by any court of competent
jurisdiction in which such dissolution, winding-up, liquidation or
reorganization proceedings are pending, or a certificate of the receiver,
trustee in bankruptcy, liquidation trustee, agent or other Person making such
payment or distribution, delivered to the Trustee or to the Securityholders, for
the purposes of ascertaining the Persons entitled to participate in such
distribution, the holders of Senior Indebtedness and other indebtedness of the
Company, as the case may be, the amount thereof or payable thereon, the amount
or amounts paid or distributed thereon and all other facts pertinent thereto or
to this Article XV.

SECTION 15.05. Trustee to Effectuate Subordination.

                  Each Securityholder by such Securityholder's acceptance
thereof authorizes and directs the Trustee on such Securityholder's behalf to
take such action as may be necessary or appropriate to effectuate the
subordination provided in this Article XV and appoints the Trustee such
Securityholder's attorney-in-fact for any and all such purposes.

SECTION 15.06. Notice by the Company.

                  The Company shall give prompt written notice to a Responsible
Officer of the Trustee of any fact known to the Company that would prohibit the
making of any payment of monies to or by the Trustee in respect of the
Securities pursuant to the provisions of this Article XV. Notwithstanding the
provisions of this Article XV or any other provision of this Indenture, the
Trustee shall not be charged with knowledge of the existence of any facts that
would prohibit the making of any payment of monies to or by the Trustee in
respect of the Securities pursuant to the provisions of this Article XV, unless
and until a Responsible Officer of the Trustee shall have received written
notice thereof from the Company or a holder or



                                       61
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holders of Senior Indebtedness or from any trustee therefor; and before the
receipt of any such written notice, the Trustee, subject to the provisions of
Article VI of this Indenture, shall be entitled in all respects to assume that
no such facts exist; provided, however, that if the Trustee shall not have
received the notice provided for in this Section 15.06 at least three Business
Days prior to the date upon which by the terms hereof any money may become
payable for any purpose (including, without limitation, the payment of the
principal of (or premium, if any) or interest on any Security), then, anything
herein contained to the contrary notwithstanding, the Trustee shall have full
power and authority to receive such money and to apply the same to the purposes
for which they were received, and shall not be affected by any notice to the
contrary that may be received by it within three Business Days prior to such
date.

                  The Trustee, subject to the provisions of Article VI of this
Indenture, shall be entitled conclusively to rely on the delivery to it of a
written notice by a Person representing himself to be a holder of Senior
Indebtedness of the Company (or a trustee on behalf of such holder), to
establish that such notice has been given by a holder of such Senior
Indebtedness or a trustee on behalf of any such holder or holders. In the event
that the Trustee determines in good faith that further evidence is required with
respect to the right of any Person as a holder of such Senior Indebtedness to
participate in any payment or distribution pursuant to this Article XV, the
Trustee may request such Person to furnish evidence to the reasonable
satisfaction of the Trustee as to the amount of such Senior Indebtedness held by
such Person, the extent to which such Person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such
Person under this Article XV, and, if such evidence is not furnished, the
Trustee may defer any payment to such Person pending judicial determination as
to the right of such Person to receive such payment.

                  Upon any payment or distribution of assets of the Company
referred to in this Article XV, the Trustee and the Securityholders shall be
entitled to rely upon any order or decree entered by any court of competent
jurisdiction in which such insolvency, bankruptcy, receivership, liquidation,
reorganization, dissolution, winding up or similar case or proceeding is
pending, or a certificate of the trustee in bankruptcy, liquidating trustee,
custodian, receiver, assignee for the benefit of creditors, agent or other
person making such payment or distribution, delivered to the Trustee or to the
Securityholders, for the purpose of ascertaining the persons entitled to
participate in such payment or distribution, the holders of Senior Indebtedness
and other indebtedness of the Company, the amount thereof or payable thereon,
the amount or amounts paid or distributed thereon and all other facts pertinent
thereto or to this Article XV.

SECTION 15.07. Rights of the Trustee; Holders of Senior Indebtedness.

                  The Trustee in its individual capacity shall be entitled to
all the rights set forth in this Article XV in respect of any Senior
Indebtedness at any time held by it, to the same extent as any other holder of
Senior Indebtedness, and nothing in this Indenture shall deprive the Trustee of
any of its rights as such holder.

                  With respect to the holders of Senior Indebtedness of the
Company, the Trustee undertakes to perform or to observe only such of its
covenants and obligations as are specifically set forth in this Article XV, and
no implied covenants or obligations with respect to the holders of such Senior
Indebtedness shall be read into this Indenture against the Trustee. The Trustee
shall not be deemed to owe any fiduciary duty to the holders of such Senior



                                       62
   69
Indebtedness and, subject to the provisions of Article VI of this Indenture, the
Trustee shall not be liable to any holder of such Senior Indebtedness if it
shall pay over or deliver to Securityholders, the Company or any other Person
money or assets to which any holder of such Senior Indebtedness shall be
entitled by virtue of this Article XV or otherwise.

                  Nothing in this Article XV shall apply to claims of, or
payments to, the Trustee under or pursuant to Section 6.06.

SECTION 15.08. Subordination May Not Be Impaired.

                  No right of any present or future holder of any Senior
Indebtedness of the Company to enforce subordination as herein provided shall at
any time in any way be prejudiced or impaired by any act or failure to act on
the part of the Company or by any act or failure to act, in good faith, by any
such holder, or by any noncompliance by the Company with the terms, provisions
and covenants of this Indenture, regardless of any knowledge thereof that any
such holder may have or otherwise be charged with.

                  Without in any way limiting the generality of the foregoing
paragraph, the holders of Senior Indebtedness of the Company may, at any time
and from time to time, without the consent of or notice to the Trustee or the
Securityholders, without incurring responsibility to the Securityholders and
without impairing or releasing the subordination provided in this Article XV or
the obligations hereunder of the holders of the Securities to the holders of
such Senior Indebtedness, do any one or more of the following: (i) change the
manner, place or terms of payment or extend the time of payment of, or renew or
alter, such Senior Indebtedness, or otherwise amend or supplement in any manner
such Senior Indebtedness or any instrument evidencing the same or any agreement
under which such Senior Indebtedness is outstanding; (ii) sell, exchange,
release or otherwise deal with any property pledged, mortgaged or otherwise
securing such Senior Indebtedness; (iii) release any Person liable in any manner
for the collection of such Senior Indebtedness; and (iv) exercise or refrain
from exercising any rights against the Company and any other Person.

                                  ARTICLE XVI.

                      EXTENSION OF INTEREST PAYMENT PERIOD

SECTION 16.01. Extension of Interest Payment Period.

                  (a) So long as no Event of Default has occurred and is
continuing, the Company shall have the right, at any time and from time to time
during the term of the Securities, to defer payments of interest by extending
the interest payment period of such Securities for a period not exceeding 10
consecutive semi-annual periods, including the first such semi-annual period
during such extension period (as set forth in Section 16.02(c)) (the "Extension
Period"), during which Extension Period no interest shall be due and payable,
provided, that no Extension Period may extend beyond the Stated Maturity. To the
extent permitted by applicable law, interest, the payment of which has been
deferred because of the extension of the interest payment period pursuant to
this Section 16.01, will bear interest thereon at the Coupon Rate compounded
semi-annually for each semi-annual period of the Extension Period ("Compounded
Interest"). At the end of the Extension Period, the Company



                                       63
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shall pay all interest accrued and unpaid on the Securities, including any
Additional Sums and Compounded Interest (together, "Deferred Interest") that
shall be payable to the holders of the Securities in whose names the Securities
are registered in the Security Register on the first record date immediately
preceding the end of the Extension Period.

                  (b) During any such Extension Period, the Company may not, and
may not permit any Subsidiary to, (i) declare or pay any dividends or
distributions on, or redeem, purchase, acquire, or make a liquidation payment
with respect to, any of the Company's capital stock (which includes common and
preferred stock), (ii) make any payment of principal, interest or premium, if
any, on or repay, repurchase or redeem any debt securities of the Company
(including Other Debentures) that rank pari passu with or junior in right of
payment to the Securities or (iii) make any guarantee payments with respect to
any guarantee by the Company of the debt securities of any Subsidiary of the
Company if such guarantee ranks pari passu with or junior in right of payment to
the Securities (other than (a) dividends or distributions in shares of or
options, warrants or rights to subscribe for or purchase shares of, common stock
of the Company, (b) any declaration of a dividend in connection with the
implementation of a stockholders' rights plan, or the issuance of stock under
any such plan in the future, or the prepayment or repurchase of any such rights
pursuant thereto, (c) payments under the Capital Securities Guarantee, (d) as a
direct result of, and only to the extent necessary to avoid the issuance of
fractional shares of the Company's capital stock following, a reclassification
of the Company's capital stock or the exchange or conversion of one class or
series of the Company's capital stock for another class or series of the
Company's capital stock, (e) the purchase of fractional interests in shares of
the Company's capital stock pursuant to the conversion or exchange provisions of
such capital stock or the security being converted or exchanged, and (f)
purchases of common stock related to the issuance of common stock or rights
under any of the Company's benefit plans for its directors, officers or
employees or any of the Company's dividend reinvestment plans). None of the
Company's Subsidiaries will be prohibited from declaring and paying cash
distributions with respect to its capital stock or from making payments with
respect to its debt securities.

                  (c) Before the termination of any such Extension Period, and
so long as no Event of Default has occurred and is continuing, the Company may
further defer payments of interest by further extending such period, provided,
that such period, together with all such previous and further extensions within
such Extension Period, shall not exceed 10 consecutive semi-annual periods,
including the first such semi-annual period during such Extension Period, or
extend beyond the Stated Maturity. Upon the termination of any Extension Period
and the payment of all Deferred Interest then due, the Company may elect to
commence a new Extension Period, subject to the foregoing requirements. No
interest shall be due and payable during an Extension Period, except at the end
thereof, but the Company may prepay at any time all or any portion of the
interest accrued during an Extension Period.

SECTION 16.02. Notice of Extension.

                  (a) If the Property Trustee is the only registered holder of
the Securities at the time the Company selects an Extension Period, the Company
shall give written notice to the Administrative Trustees, the Property Trustee
and the Trustee of its selection of such Extension Period at least 5 Business
Days before the earlier of (i) the next succeeding date on which distributions
on the Trust Securities issued by Trenwick Capital Trust I are payable, or (ii)
the date the Trust is required to give notice of the record date, or the date
such


                                       64
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Distributions are payable, to any national securities exchange or to holders of
the Capital Securities issued by the Trust, but in any event at least 5 Business
Days before such record date.

                  (b) If the Property Trustee is not the only holder of the
Securities at the time the Company selects an Extension Period, the Company
shall give the holders of the Securities and the Trustee written notice of its
selection of such Extension Period at least 10 Business Days before the earlier
of (i) the next succeeding Interest Payment Date, or (ii) the date the Company
is required to give notice of the record or payment date of such interest
payment to any national securities exchange.

                  (c) The semi-annual period in which any notice is given
pursuant to paragraphs (a) or (b) of this Section 16.02 shall be counted as one
of the 10 semi-annual periods permitted in the maximum Extension Period
permitted under Section 16.01. There is no limitation on the number of times
that the Company may elect to begin an Extension Period.

                  The Chase Manhattan Bank hereby accepts the trusts in this
Indenture declared and provided, upon the terms and conditions hereinabove set
forth.



                                       65
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                  IN WITNESS WHEREOF, the parties hereto have caused this
Indenture to be duly executed by their respective officers thereunto duly
authorized, as of the day and year first above written.

                                     TRENWICK GROUP INC.



                                     By: /s/ James F. Billett, Jr.
                                        -----------------------------------
                                         James F. Billett, Jr.
                                         Chairman, President and Chief
                                         Executive Officer




                                     THE CHASE MANHATTAN BANK, as Trustee



                                     By: /s/ G. McFarlane
                                        -----------------------------------
                                         G. McFarlane
                                         Vice President
   73
                                    EXHIBIT A

                           (FORM OF FACE OF SECURITY)

                  [IF THE SECURITY IS A GLOBAL SECURITY, INSERT: THIS SECURITY
IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO
AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY.
THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON
OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES
DESCRIBED IN THE INDENTURE, AND NO TRANSFER OF THIS SECURITY (OTHER THAN A
TRANSFER OF THIS SECURITY AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE
DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER
NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES.

                  UNLESS (A) THIS SECURITY IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"),
TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
AND (B) ANY SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DTC (AND ANY
PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY
AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF
FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]



                                       1
   74
No. ________                                                  CUSIP No. ________

                               TRENWICK GROUP INC.
         8.82% EXCHANGE JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURE
                              DUE FEBRUARY 1, 2037


                  Trenwick Group Inc., a Delaware corporation (the "Company",
which term includes any successor Person under the Indenture hereinafter
referred to), for value received, hereby promises to pay to
____________________________, or registered assigns, the principal sum of
____________________________________________U.S. dollars ($____________) on
February 1, 2037 (the "Stated Maturity"), unless the Stated Maturity is
shortened under certain circumstances described herein or this Debenture is
previously prepaid, and to pay interest on the outstanding principal amount
hereof from January 31, 1997, or from the most recent interest payment date
(each such date, an "Interest Payment Date") to which interest has been paid or
duly provided for, semi-annually (subject to deferral as set forth herein) in
arrears on February 1 and August 1 of each year, commencing August 1, 1997, at
the rate of 8.82% per annum until the principal hereof shall have become due and
payable, and on any overdue principal and premium, if any, and (without
duplication and to the extent that payment of such interest is enforceable under
applicable law) on any overdue installment of interest at the same rate per
annum compounded semi-annually. The amount of interest payable on any Interest
Payment Date shall be computed on the basis of a 360-day year of twelve 30-day
months and, for any period less than 6 months, the actual months elapsed and the
actual days elapsed in a partial month in such period. In the event that any
date on which the principal of (or premium, if any) or interest on this Security
is payable is not a Business Day, then payment payable on such date will be made
on the next succeeding day that is a Business Day (and without any interest or
other payment in respect of any such delay), with the same force and effect as
if made on such date.

                  The interest installment so payable, and punctually paid or
duly provided for, on any Interest Payment Date will, as provided in the
Indenture, be paid to the Person in whose name this Security (or one or more
Predecessor Securities, as defined in said Indenture) is registered at the close
of business on the Regular Record Date for such interest installment, which
shall be the 15th day preceding the relevant interest payment date. Any such
interest installment not punctually paid or duly provided for shall forthwith
cease to be payable to the holders on such Regular Record Date and may be paid
to the Person in whose name this Security (or one or more Predecessor
Securities) is registered at the close of business on a special record date to
be fixed by the Trustee for the payment of such defaulted interest, notice
whereof shall be given to the holders of Securities not less than 10 days prior
to such special record date, or may be paid at any time in any other lawful
manner not inconsistent with the requirements of any securities exchange on
which the Securities may be listed, and upon such notice as maybe required by
such exchange, all as more fully provided in the Indenture.

                  The principal of (and premium, if any) and interest on this
Security shall be payable at the office or agency of the Trustee maintained for
that purpose in any coin or currency of the United States of America that at the
time of payment is legal tender for payment of public and private debts;
provided, however, that payment of interest may be made at the option of the
Company by (i) check mailed to the holder at such address as shall appear in the
Security Register or (ii) by transfer to an account maintained by the Person
entitled



                                       2
   75
thereto, provided, that proper written transfer instructions have been received
by the relevant record date. Notwithstanding the foregoing, so long as the
Holder of this Security is the Property Trustee, the payment of the principal of
(and premium, if any) and interest on this Security will be made at such place
and to such account as may be designated by the Property Trustee.

                  The indebtedness evidenced by this Security is unsecured and,
to the extent provided in the Indenture, subordinate and junior in right of
payment to the prior payment in full of Senior Indebtedness, and this Security
is issued subject to the provisions of the Indenture with respect thereto. Each
holder of this Security, by accepting the same, (a) agrees to and shall be bound
by such provisions, (b) authorizes and directs the Trustee on his or her behalf
to take such action as may be necessary or appropriate to acknowledge or
effectuate the subordination so provided and (c) appoints the Trustee his or her
attorney-in-fact for any and all such purposes. Each holder hereof, by his or
her acceptance hereof, hereby waives all notice of the acceptance of the
subordination provisions contained herein and in the Indenture by each holder of
Senior Indebtedness, whether now outstanding or hereafter incurred, and waives
reliance by each such holder upon said provisions.

                  By its acceptance hereof, the Holder agrees to be bound by the
terms of the Registration Rights Agreement.

                  This Security shall not be entitled to any benefit under the
Indenture hereinafter referred to, be valid or become obligatory for any purpose
until the Certificate of Authentication hereon shall have been signed by or on
behalf of the Trustee.



                                       3
   76
                  The provisions of this Security are continued on the reverse
side hereof and such provisions shall for all purposes have the same effect as
though fully set forth at this place.

                  IN WITNESS WHEREOF, the Company has caused this instrument to
he executed.

Dated: __________________


                                         TRENWICK GROUP INC.


                                         By: _____________________________
                                             Name:
                                             Title:

Attest:


By: _______________________________
    Name:
    Title:




                                       4
   77
                     (FORM OF CERTIFICATE OF AUTHENTICATION)

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Securities referred to in the
within-mentioned Indenture.



THE CHASE MANHATTAN BANK, as Trustee


By: _____________________________
    Authorized Officer






                                       5
   78
                          (FORM OF REVERSE OF SECURITY)

                  This Security is one of the Securities of the Company (herein
sometimes referred to as the "Securities"), specified in the Indenture, all
issued or to be issued under and pursuant to an Indenture, dated as of January
31, 1997 (the "Indenture"), duly executed and delivered between the Company and
The Chase Manhattan Bank, as Trustee (the "Trustee"), to which Indenture
reference is hereby made for a description of the rights, limitations of rights,
obligations, duties and immunities thereunder of the Trustee, the Company and
the holders of the Securities.

                  Upon the occurrence and continuation of a Special Event, the
Company shall have the right to prepay this Security in whole (but not in part)
at the Special Event Prepayment Price. "Special Event Prepayment Price" shall
mean, with respect to any prepayment of the Securities following a Special
Event, an amount in cash equal to the greater of (i) 100% of the principal
amount to be prepaid or (ii) the sum, as determined by a Quotation Agent, of the
present values of the remaining scheduled payments of principal and interest
thereon to February 1, 2007, the first day on which this Security is subject to
optional prepayment, discounted to the prepayment date on a semi-annual basis
(assuming a 360-day year consisting of twelve 30-day months and, for any period
less than 6 months, the actual months elapsed and the actual days elapsed in a
partial month in such period) at the Adjusted Treasury Rate, plus, in each case,
any accrued and unpaid interest thereon, including Compounded Interest,
Additional Interest and Additional Sums, if any, to the date of such prepayment.

                  In addition, the Company shall have the right to prepay this
Security, in whole or in part, at any time on or after February 1, 2007 (an
"Optional Prepayment"), at the Optional Prepayment Price equal to the principal
amount of this Security plus accrued and unpaid interest thereon (including
Compounded Interest and Additional Sums, if any) to the applicable date of
prepayment.

                  The Special Event Prepayment Price and the Optional Prepayment
Price, as the case requires, shall be paid prior to 12:00 noon, New York time,
on the date of such prepayment or at such earlier time as the Company
determines, provided, that the Company shall deposit with the Trustee an amount
sufficient to pay the applicable Prepayment Price by 10:00 a.m., New York City
time, on the date such Prepayment Price is to be paid. Any prepayment pursuant
to this paragraph will be made upon not less than 30 days nor more than 60 days
notice. If the Securities are only partially prepaid by the Company pursuant to
an Optional Prepayment, the Securities to be prepaid will be chosen by lot or by
any other method utilized by the Trustee; provided, that, as to Securities
registered as a Global Security at the time of prepayment, the Depositary shall
determine the particular Securities to be prepaid in accordance with its
procedures.

                  In the event of prepayment of this Security in part only, a
new Security or Securities for the unprepaid portion hereof will be issued in
the name of the holder hereof upon the cancellation hereof.

                  If a Tax Event occurs, then the Company will have the right,
prior to the termination of the Trust, either (i) to shorten the Stated Maturity
of this Security to the minimum extent, but not to a date earlier than 20 years
from the date of original issuance of



                                       6
   79
Securities under the Indenture, such that, in the written opinion of counsel
experienced in such matters delivered to the Company, after shortening the
Stated Maturity, interest paid on the Securities shall be deductible for federal
income tax purposes or (ii) to prepay the Securities.

                  In case an Event of Default, as defined in the Indenture,
shall have occurred and be continuing, the principal of all of the Securities
may be declared, and upon such declaration shall become, due and payable, in the
manner, with the effect and subject to the conditions provided in the Indenture.

                  The Indenture contains provisions permitting the Company and
the Trustee, with the consent of the holders of a majority in principal amount
of the Securities at the time outstanding, as defined in the Indenture, to
execute supplemental indentures for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of the Indenture or
of modifying in any manner the rights of the holders of the Securities;
provided, however, that no such supplemental indenture shall, without the
consent of each holder of Securities then outstanding and affected thereby, (i)
extend the Stated Maturity of any Securities, or reduce the principal amount
thereof, or reduce any amount payable on prepayment thereof, or reduce the rate
or extend the time of payment of interest thereon (subject to Article XVI of the
Indenture), or make the principal of, or interest or premium on, the Securities
payable in any coin or currency other than U.S. dollars, or impair or affect the
right of any holder of Securities to institute suit for the payment thereof, or
(ii) reduce the aforesaid percentage of Securities, the holders of which are
required to consent to any such supplemental indenture. The Indenture also
contains provisions permitting the holders of a majority in principal amount of
the Securities at the time outstanding affected thereby, on behalf of all of the
holders of the Securities, to waive any past default in the performance of any
of the covenants contained in the Indenture, or established pursuant to the
Indenture, and its consequences, except a Default in the payment of the
principal of or premium, if any, or interest on any of the Securities or a
Default in respect of any covenant or provision under which the Indenture cannot
be modified or amended without the consent of each holder of Securities then
outstanding. Any such consent or waiver by the holder of this Security (unless
revoked as provided in the Indenture) shall be conclusive and binding upon such
Holder and upon all future holders and owners of this Security and of any
Security issued in exchange heretofore or in place hereof (whether by
registration of transfer or otherwise), irrespective of whether or not any
notation of such consent or waiver is made upon this Security.

                  No reference herein to the Indenture and no provision of this
Security or of the Indenture shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and
premium, if any, and interest on this Security at the time and place and at the
rate and in the money herein prescribed.

                  As long as no Event of Default has occurred and is continuing,
the Company shall have the right, at any time and from time to time during the
term of the Securities, to defer payments of interest by extending the interest
payment period of such Securities for a period not exceeding 10 consecutive
semi-annual periods, including the first such semi-annual period during such
extension period (an "Extension Period"), during which Extension Period no
interest shall be due and payable, provided, that no Extension Period may extend
beyond the Stated Maturity of the Securities. At the end of the Extension
Period, the Company shall pay all interest then accrued and unpaid, together
with deferred interest thereon at the rate specified for the Securities (to the
extent that payment of such interest is enforceable


                                       7
   80
under applicable law). Before the termination of any such Extension Period, and
so long as no Event of Default has occurred and is continuing, the Company may
further defer payments of interest by further extending such Extension Period,
provided, that such Extension Period, together with all such previous and
further extensions within such Extension Period, shall not exceed 10 consecutive
semi-annual periods, including the first semi-annual period during such
Extension Period, or extend beyond the Stated Maturity of the Securities. Upon
the termination of any such Extension Period and the payment of all accrued and
unpaid interest and any additional amounts then due, the Company may commence a
new Extension Period, subject to the foregoing requirements.

                  The Company has agreed that, if at any time (i) there shall
have occurred any event of which the Company has actual knowledge that (a) is,
or with the giving of notice or the lapse of time, or both, would be, an Event
of Default and (b) in respect of which the Company shall not have taken
reasonable steps to cure, (ii) if such Securities are held by Trenwick Capital
Trust I, the Company shall be in default with respect to its payment of any
obligations under the Capital Securities Guarantee, or (iii) the Company shall
have given notice of its election of the exercise of its right to extend the
interest payment period and any such extension shall be continuing, then the
Company will not, and will not permit any Subsidiary to,

                      (i) declare or pay any dividends or distributions on, or
             prepay, purchase, acquire, or make a liquidation payment with
             respect to, any of the Company's capital stock) (which includes
             common and preferred stock);

                      (ii) make any payment of principal, interest or premium,
             if any, on or repay or repurchase or prepay any debt securities of
             the Company that rank pari passu with or junior in right of payment
             to the Securities; or

                      (iii) make any guarantee payments with respect to any
             guarantee by the Company of the debt securities or any Subsidiary
             of the Company if such guarantee ranks pari passu or junior in
             right of payment to the Securities

other than (a) dividends or distributions in shares of, or options, warrants or
rights to subscribe for or purchase shares of, Common Stock of the Company, (b)
any declaration of a dividend in connection with the implementation of a
stockholder rights plan, or the issuance of stock under any such plan in the
future, or the prepayment or repurchase of any such rights pursuant thereto, (c)
payments under the Capital Securities Guarantee, (d) as a direct result of, and
only to the extent necessary to avoid the issuance of fractional shares of the
Company's capital stock following, a reclassification of the Company's capital
stock or the exchange or the conversion of one class or series of the Company's
capital stock for another class or series of the Company's capital stock, (e)
the purchase of fractional interests in shares of the Company's capital stock
pursuant to the exchange or conversion of such capital stock or the security
being exchanged or converted, and (f) purchases of Common Stock related to the
issuance of Common Stock or rights under any of the Company's benefit plans for
its directors, officers or employees or any of the Company's dividend
reinvestment plans. None of the Company's Subsidiaries will be prohibited from
declaring and paying cash distributions with respect to its capital stock or
from making payments with respect to its debt securities.



                                       8
   81
                  The Company will have the right at any time to dissolve
Trenwick Capital Trust I and cause the Securities to be distributed to the
holders of the Trust Securities in liquidation of Trenwick Capital Trust I,
subject to the provisions of the Indenture requiring the receipt of certain
legal opinions.

                  The Securities are issuable only in registered form without
coupons in denominations of $1,000.00 and any integral multiple thereof. As
provided in the Indenture, this Security is transferable by the holder hereof on
the Security Register of the Company, upon surrender of this Security for
registration of transfer at the office or agency of the Trustee in the City and
State of New York accompanied by a written instrument or instruments of transfer
in form satisfactory to the Company or the Trustee duly executed by the holder
hereof or his attorney duly authorized in writing, and thereupon one or more new
Securities of authorized denominations and for the same aggregate principal
amount and series will be issued to the designated transferee or transferees. No
service charge will be made for any such transfer, but the Company may require
payment of a sum sufficient to cover any tax or other governmental charge
payable in relation thereto.

                  Prior to due presentment for registration of transfer of this
Security, the Company, the Trustee, any paying agent and the registrar may deem
and treat the holder hereof as the absolute owner hereof (whether or not this
Security shall be overdue and notwithstanding any notice of ownership or writing
hereon made by anyone other than the Security registrar) for the purpose of
receiving payment of or on account of the principal hereof and premium, if any,
and interest due hereon and for all other purposes, and neither the Company nor
the Trustee nor any paying agent nor any registrar shall be affected by any
notice to the contrary.

                  No recourse shall be had for the payment of the principal of
or premium, if any, or interest on this Security, or for any claim based hereon,
or otherwise in respect hereof, or based on or in respect of the Indenture,
against any incorporator, stockholder, officer or director, past, present or
future, as such, of the Company or of any predecessor or successor Person,
whether by virtue of any constitution, statute or rule of law, or by the
enforcement of any assessment or penalty or otherwise, all such liability being,
by the acceptance hereof and as part of the consideration for the issuance
hereof, expressly waived and released.

                  All terms used in this Security that are defined in the
Indenture shall have the meanings assigned to them in the Indenture.

                  THE INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO
CONFLICT OF LAW PROVISIONS THEREOF.



                                       9
   82
                                   ASSIGNMENT

                  FOR VALUE RECEIVED, the undersigned assigns and transfers this
Security Certificate to:

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________


(Insert assignee's social security or tax identification number)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________


(Insert address and zip code of assignee)

and irrevocably appoints

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________


agent to transfer this Security Certificate on the books of the Trust. The agent
may substitute another to act for him or her.

Date: ___________________________

Signature: ______________________
(Sign exactly as your name appears on the other side of this Security
Certificate)

Signature Guarantee:

________________________

* Signature must be guaranteed by an "eligible guarantor institution" that is a
bank, stockbroker, savings and loan association or credit union meeting the
requirements of the Registrar, which requirements include membership or
participation in the Securities Transfer Agents Medallion Program ("STAMP") or
such other "signature guarantee program" as may be determined by the Registrar
in addition to, or in substitution for, STAMP, all in accordance with the
Securities and Exchange Act of 1934, as amended.


                                       10