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                                                                    EXHIBIT 99.1
 
                             LETTER OF TRANSMITTAL
 
                            TRENWICK CAPITAL TRUST I
 
                             Offer to Exchange its
             8.82% Exchange Subordinated Capital Income Securities
                (Liquidation Amount $1,000 per Capital Security)
    which have been registered under the Securities Act of 1933, as amended
                       for any and all of its outstanding
                  8.82% Subordinated Capital Income Securities
                (Liquidation Amount $1,000 per Capital Security)
 
                           Pursuant to the Prospectus
                          dated                , 1997
                            ------------------------
 
THE EXCHANGE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M., NEW YORK CITY
        TIME, ON JULY             , 1997, UNLESS THE OFFER IS EXTENDED.
 
                            ------------------------
 
                 THE EXCHANGE AGENT FOR THE EXCHANGE OFFER IS:
                            THE CHASE MANHATTAN BANK
 
          By Registered or Certified Mail, Hand Or Overnight Delivery:
 
                            The Chase Manhattan Bank
                           55 Water Street, Room 234
                                 North Building
                            New York, New York 10041
                            Attention: Sharon Lewis
 
                             Confirm by Telephone:
                                 (212) 638-0454
 
                            Facsimile Transmissions:
                          (Eligible Institutions Only)
                                 (212) 638-7380
 DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS SET
 FORTH ABOVE, OR TRANSMITTAL VIA FACSIMILE TO A NUMBER OTHER THAN AS SET FORTH
                  ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.
THE INSTRUCTIONS CONTAINED HEREIN SHOULD BE READ CAREFULLY BEFORE THIS LETTER OF
                           TRANSMITTAL IS COMPLETED.
 
     Capitalized terms used but not defined herein shall have the same meaning
given them in the Prospectus (as defined below).
 
     This Letter of Transmittal is to be completed by holders of Old Capital
Securities (as defined below) either if Old Capital Securities are to be
forwarded herewith or if tenders of Old Capital Securities are to be made by
book-entry transfer to an account maintained by The Chase Manhattan Bank (the
"Exchange Agent") at The Depository Trust Company ("DTC") pursuant to the
procedures set forth in "The Exchange Offer -- Procedures for Tendering Old
Capital Securities" in the Prospectus and an Agent's Message (as defined herein)
is not delivered.
 
     Holders of Old Capital Securities whose certificates (the "Certificates")
for such Old Capital Securities are not immediately available or who cannot
deliver their Certificates and all other required documents to the Exchange
Agent on or prior to the Expiration Date (as defined in the Prospectus) or who
cannot complete the procedures for book-entry transfer on a timely basis must
tender their Old Capital Securities according to the guaranteed delivery
procedures set forth in "The Exchange Offer -- Procedures for Tendering Old
Capital Securities" in the Prospectus.
 
     DELIVERY OF DOCUMENTS TO DTC DOES NOT CONSTITUTE DELIVERY TO THE EXCHANGE
AGENT.
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                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.
 
ALL TENDERING HOLDERS COMPLETE THIS BOX:
 
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                              DESCRIPTION OF OLD CAPITAL SECURITIES TENDERED
- -----------------------------------------------------------------------------------------------------------
  IF BLANK, PLEASE PRINT NAME AND ADDRESS                   OLD CAPITAL SECURITIES TENDERED
           OF REGISTERED HOLDER.                         (ATTACH ADDITIONAL LIST IF NECESSARY)
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                                                                       AGGREGATE       LIQUIDATION AMOUNT
                                                                  LIQUIDATION AMOUNT     OF OLD CAPITAL
                                                 CERTIFICATE        OF OLD CAPITAL     SECURITIES TENDERED
                                                 NUMBER(S)*           SECURITIES      (IF LESS THAN ALL)**
                                            ---------------------------------------------------------------
 
                                            ---------------------------------------------------------------
 
                                            ---------------------------------------------------------------
 
                                            ---------------------------------------------------------------
 
                                            TOTAL
                                            AMOUNT
                                            TENDERED:

 
- --------------------------------------------------------------------------------
 
   * Need not be completed by book-entry holders.
  ** Old Capital Securities may be tendered in whole or in part in any
     integral multiples of $1,000 (one Old Capital Security) not withstanding
     the requirement, applicable to all other transfers of Old Capital
     Securities, of minimum transfer amount of $100,000 in Liquidation
     Amount. For purposes of tenders of Old Capital Securities in the
     Exchange Offer, the requirement for minimum transfers of $100,000
     Liquidation Amount will be waived. All Old Capital Securities held shall
     be deemed tendered unless a lesser number is specified in this column.
     See Instruction 4.
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           (BOXES BELOW TO BE CHECKED BY ELIGIBLE INSTITUTIONS ONLY)
 

   
[ ]   CHECK HERE IF TENDERED OLD CAPITAL SECURITIES ARE BEING DELIVERED BY BOOK- ENTRY TRANSFER MADE
      TO THE ACCOUNT MAINTAINED BY THE EXCHANGE AGENT WITH DTC AND COMPLETE THE FOLLOWING:
 
      Name of Tendering Institution
 
      DTC Account Number
 
      Transaction Code Number
 
[ ]   CHECK HERE AND ENCLOSE A PHOTOCOPY OF THE NOTICE OF GUARANTEED DELIVERY IF TENDERED OLD CAPITAL
      SECURITIES ARE BEING DELIVERED PURSUANT TO A NOTICE OF GUARANTEED DELIVERY PREVIOUSLY SENT TO
      THE EXCHANGE AGENT AND COMPLETE THE FOLLOWING:
 
      Name of Registered Holder(s)
 
      Window Ticket Number (if any)
 
      Date of Execution of Notice of Guaranteed Delivery
 
      Name of Institution which Guaranteed Delivery
 
      If Guaranteed Delivered is to be made By Book-Entry Transfer:
 
      Name of Tendering Institution
 
      DTC Account Number
 
      Transaction Code Number
 
[ ]   CHECK HERE IF TENDERED BY BOOK-ENTRY TRANSFER AND NON-EXCHANGED OLD CAPITAL SECURITIES ARE TO BE
      RETURNED BY CREDITING THE DTC ACCOUNT NUMBER SET FORTH ABOVE.
 
[ ]   CHECK HERE IF YOU ARE A BROKER-DEALER WHO ACQUIRED THE OLD CAPITAL SECURITIES FOR ITS OWN
      ACCOUNT AS A RESULT OF MARKET MAKING OR OTHER TRADING ACTIVITIES (A "PARTICIPATING
      BROKER-DEALER") AND WISH TO RECEIVE 10 ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY
      AMENDMENTS OR SUPPLEMENTS THERETO.
 
      Name:
 
      Address:

 
Ladies and Gentlemen:
 
     The undersigned hereby tenders to Trenwick Capital Trust I, a statutory
business trust formed under the laws of the State of Delaware (the "Trust"), and
Trenwick Group Inc., a Delaware corporation (the "Company"), the above described
aggregate Liquidation Amount of the Trust's 8.82% Subordinated Capital Income
Securities (the "Old Capital Securities") in exchange for a like aggregate
Liquidation Amount of the Trust's 8.82% Exchange Subordinated Capital Income
Securities (the "Exchange Capital Securities") which have been registered under
the Securities Act of 1933, as amended (the "Securities Act"), upon the terms
and subject to the conditions set forth in the Prospectus dated                ,
1997 (as the same may be amended or supplemented from time to time, the
"Prospectus"), receipt of which is acknowledged, and in this Letter of
Transmittal (which, together with the Prospectus, constitute the "Exchange
Offer").
 
     Subject to and effective upon the acceptance for exchange of all or any
portion of the Old Capital Securities tendered herewith in accordance with the
terms and conditions of the Exchange Offer (including, if the Exchange Offer is
extended
 
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or amended, the terms and conditions of any such extension or amendment), the
undersigned hereby sells, assigns and transfers to or upon the order of the
Trust all right, title and interest in and to such Old Capital Securities as are
being tendered herewith. The undersigned hereby irrevocably constitutes and
appoints the Exchange Agent as its agent and attorney-in-fact (with full
knowledge that the Exchange Agent is also acting as agent of the Company and the
Trust in connection with the Exchange Offer) with respect to the tendered Old
Capital Securities, with full power of substitution (such power of attorney
being deemed to be an irrevocable power coupled with an interest), subject only
to the right of withdrawal described in the Prospectus, to (i) deliver
Certificates for Old Capital Securities to the Company or the Trust together
with all accompanying evidences of transfer and authenticity to, or upon the
order of, the Trust, upon receipt by the Exchange Agent, as the undersigned's
agent, of the Exchange Capital Securities to be issued in exchange for such Old
Capital Securities, (ii) present Certificates for such Old Capital Securities
for transfer, and to transfer the Old Capital Securities on the books of the
Trust, and (iii) receive for the account of the Trust all benefits and otherwise
exercise all rights of beneficial ownership of such Old Capital Securities, all
in accordance with the terms and conditions of the Exchange Offer.
 
     THE UNDERSIGNED HEREBY REPRESENTS AND WARRANTS THAT THE UNDERSIGNED HAS
FULL POWER AND AUTHORITY TO TENDER, EXCHANGE, SELL, ASSIGN AND TRANSFER THE OLD
CAPITAL SECURITIES TENDERED HEREBY AND THAT, WHEN THE SAME ARE ACCEPTED FOR
EXCHANGE, THE TRUST WILL ACQUIRE GOOD, MARKETABLE AND UNENCUMBERED TITLE
THERETO, FREE AND CLEAR OF ALL LIENS, RESTRICTIONS, CHARGES AND ENCUMBRANCES,
AND THAT THE OLD CAPITAL SECURITIES TENDERED HEREBY ARE NOT SUBJECT TO ANY
ADVERSE CLAIMS OR PROXIES. THE UNDERSIGNED WILL, UPON REQUEST, EXECUTE AND
DELIVER ANY ADDITIONAL DOCUMENTS DEEMED BY THE TRUST OR THE EXCHANGE AGENT TO BE
NECESSARY OR DESIRABLE TO COMPLETE THE EXCHANGE, SALE, ASSIGNMENT AND TRANSFER
OF THE OLD CAPITAL SECURITIES TENDERED HEREBY, AND THE UNDERSIGNED WILL COMPLY
WITH ITS OBLIGATIONS UNDER THE REGISTRATION RIGHTS AGREEMENT (AS DEFINED IN THE
PROSPECTUS). THE UNDERSIGNED HAS READ AND AGREES TO ALL OF THE TERMS OF THE
EXCHANGE OFFER.
 
     The name(s) and address(es) of the registered holder(s) of the Old Capital
Securities tendered hereby should be printed above, if they are not already set
forth above, as they appear on the Certificates representing such Old Capital
Securities. The Certificate number(s) and the Old Capital Securities that the
undersigned wishes to tender should be indicated in the appropriate boxes above.
 
     If any tendered Old Capital Securities are not exchanged pursuant to the
Exchange Offer for any reason, or if Certificates are submitted for more Old
Capital Securities than are tendered or accepted for exchange, Certificates for
such nonexchanged or nontendered Old Capital Securities will be returned (or, in
the case of Old Capital Securities tendered by book-entry transfer, such Old
Capital Securities will be credited to an account maintained at DTC), without
expense to the tendering holder, promptly following the expiration or
termination of the Exchange Offer.
 
     The undersigned understands that tenders of Old Capital Securities pursuant
to any one of the procedures described in "The Exchange Offer -- Procedures for
Tendering Old Capital Securities" in the Prospectus and in the instructions
will, upon the Trust's acceptance for exchange of such tendered Old Capital
Securities, constitute a binding agreement between the undersigned and the Trust
upon the terms and subject to the conditions of the Exchange Offer. The
undersigned recognizes that under certain circumstances set forth in the
Prospectus, the Trust may not be required to accept for exchange any of the Old
Capital Securities tendered hereby.
 
     Unless otherwise indicated herein in the box entitled "Special Issuance
Instructions" below the undersigned hereby directs that the Exchange Capital
Securities be issued in the name(s) of the undersigned or, in the case of a
book-entry transfer of Old Capital Securities that such Exchange Capital
Securities be credited to the account indicated above maintained at DTC. If
applicable, substitute Certificates representing Old Capital Securities not
exchanged or not accepted for exchange will be issued to the undersigned or, in
the case of a book-entry transfer of Old Capital Securities will be credited to
the account indicated above maintained at DTC. Similarly unless otherwise
indicated under "Special Delivery Instructions" below, please deliver Exchange
Capital Securities to the undersigned at the address shown below the
undersigned's signature.
 
     By tendering Old Capital Securities and executing this Letter of
Transmittal, the undersigned hereby represents and agrees that (i) the
undersigned is not an "affiliate" of the Company or the Trust within the meaning
of Rule 405 under the Securities Act, (ii) any Exchange Capital Securities to be
received by the undersigned are being acquired in the ordinary course of its
business, (iii) the undersigned has no arrangement or understanding with any
person to participate in a distribution (within the meaning of the Securities
Act) of Exchange Capital Securities to be received in the Exchange Offer, and
(iv) if the undersigned is not a broker-dealer, the undersigned is not engaged
in, and does not intend to engage in, a distribution (within the meaning of the
Securities Act) of such Exchange Capital Securities. By tendering Old Capital
Securities pursuant to the Exchange Offer and executing this Letter of
Transmittal, a holder of Old Capital Securities which is a broker-dealer
represents and agrees, consistent with certain interpretive letters issued by
the staff of the Division of Corporation Finance of the Securities and Exchange
Commission to third parties, that (a) such Old Capital Securities held by the
broker-dealer are held only as a nominee, or (b) such Old Capital Securities
were acquired by such broker-dealer for its own account as a result of
market-making activities or other trading activities and it will
 
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deliver a prospectus (as amended or supplemented from time to time) meeting the
requirements of the Securities Act in connection with any resale of such
Exchange Capital Securities (provided that, by so acknowledging and by
delivering a prospectus, such broker-dealer will not be deemed to admit that it
is an "underwriter" within the meaning of the Securities Act).
 
     THE COMPANY AND THE TRUST HAVE AGREED THAT, SUBJECT TO THE PROVISIONS OF
THE REGISTRATION RIGHTS AGREEMENT, THE PROSPECTUS, AS IT MAY BE AMENDED OR
SUPPLEMENTED FROM TIME TO TIME, MAY BE USED BY A PARTICIPATING BROKER-DEALER (AS
DEFINED BELOW) IN CONNECTION WITH RESALES OF EXCHANGE CAPITAL SECURITIES
RECEIVED IN EXCHANGE FOR OLD CAPITAL SECURITIES, WHERE SUCH OLD CAPITAL
SECURITIES WERE ACQUIRED BY SUCH PARTICIPATING BROKER-DEALER FOR ITS OWN ACCOUNT
AS A RESULT OF MARKET-MAKING ACTIVITIES OR OTHER TRADING ACTIVITIES, FOR A
PERIOD ENDING 90 DAYS AFTER THE EXPIRATION DATE (SUBJECT TO EXTENSION UNDER
CERTAIN LIMITED CIRCUMSTANCES DESCRIBED IN THE PROSPECTUS) OR, IF EARLIER, WHEN
ALL SUCH EXCHANGE CAPITAL SECURITIES HAVE BEEN DISPOSED OF BY SUCH PARTICIPATING
BROKER-DEALER. IN THAT REGARD, EACH BROKER-DEALER WHO ACQUIRED OLD CAPITAL
SECURITIES FOR ITS OWN ACCOUNT AS A RESULT OF MARKET-MAKING OR OTHER TRADING
ACTIVITIES (A "PARTICIPATING BROKERDEALER"), BY TENDERING SUCH OLD CAPITAL
SECURITIES AND EXECUTING THIS LETTER OF TRANSMITTAL OR DELIVERING AN AGENT'S
MESSAGE IN LIEU THEREOF, AGREES THAT, UPON RECEIPT OF NOTICE FROM THE COMPANY OR
THE TRUST OF THE OCCURRENCE OF ANY EVENT OR THE DISCOVERY OF ANY FACT WHICH
MAKES ANY STATEMENT CONTAINED OR INCORPORATED BY REFERENCE IN THE PROSPECTUS
UNTRUE IN ANY MATERIAL RESPECT OR WHICH CAUSES THE PROSPECTUS TO OMIT TO STATE A
MATERIAL FACT NECESSARY IN ORDER TO MAKE THE STATEMENTS CONTAINED OR
INCORPORATED BY REFERENCE THEREIN, IN LIGHT OF THE CIRCUMSTANCES UNDER WHICH
THEY WERE MADE, NOT MISLEADING OR OF THE OCCURRENCE OF CERTAIN OTHER EVENTS
SPECIFIED IN THE REGISTRATION RIGHTS AGREEMENT, SUCH PARTICIPATING BROKER-DEALER
WILL SUSPEND THE SALE OF EXCHANGE CAPITAL SECURITIES (OR THE EXCHANGE GUARANTEE
OR THE EXCHANGE JUNIOR SUBORDINATED DEBENTURES, AS APPLICABLE) PURSUANT TO THE
PROSPECTUS UNTIL THE COMPANY OR THE TRUST HAS AMENDED OR SUPPLEMENTED THE
PROSPECTUS TO CORRECT SUCH MISSTATEMENT OR OMISSION AND HAS FURNISHED COPIES OF
THE AMENDED OR SUPPLEMENTED PROSPECTUS TO THE PARTICIPATING BROKER-DEALER OR THE
COMPANY OR THE TRUST HAS GIVEN NOTICE THAT THE SALE OF THE EXCHANGE CAPITAL
SECURITIES (OR THE EXCHANGE GUARANTEE OR THE EXCHANGE JUNIOR SUBORDINATED
DEBENTURES, AS APPLICABLE) MAY BE RESUMED, AS THE CASE MAY BE. IF THE COMPANY OR
THE TRUST GIVES SUCH NOTICE TO SUSPEND THE SALE OF THE EXCHANGE CAPITAL
SECURITIES, IT SHALL EXTEND THE 90-DAY PERIOD REFERRED TO ABOVE DURING WHICH
PARTICIPATING BROKERDEALERS ARE ENTITLED TO USE THE PROSPECTUS IN CONNECTION
WITH THE RESALE OF EXCHANGE CAPITAL SECURITIES BY THE NUMBER OF DAYS DURING THE
PERIOD FROM AND INCLUDING THE DATE OF THE GIVING OF SUCH NOTICE TO AND INCLUDING
THE DATE WHEN PARTICIPATING BROKER-DEALERS SHALL HAVE RECEIVED COPIES OF THE
SUPPLEMENTED OR AMENDED PROSPECTUS NECESSARY TO PERMIT RESALES OF THE EXCHANGE
CAPITAL SECURITIES OR TO AND INCLUDING THE DATE ON WHICH THE COMPANY OR THE
TRUST HAS GIVEN NOTICE THAT THE SALE OF EXCHANGE CAPITAL SECURITIES (OR THE
EXCHANGE GUARANTEE OR THE EXCHANGE JUNIOR SUBORDINATED DEBENTURES, AS
APPLICABLE) MAY BE RESUMED, AS THE CASE MAY BE.
 
     As a result, a Participating Broker-Dealer who intends to use the
Prospectus in connection with resales of Exchange Capital Securities received in
exchange for Old Capital Securities pursuant to the Exchange Offer must notify
the Company or the Trust, or cause the Company or the Trust to be notified, on
or prior to the Expiration Date, that it is a Participating Broker-Dealer. Such
notice may be given in the space provided above or may be delivered to the
Exchange Agent at the address set forth in the Prospectus under "The Exchange
Offer -- Exchange Agent."
 
     Holders of Old Capital Securities whose Old Capital Securities are accepted
for exchange will not receive Distributions on such Old Capital Securities and
the undersigned waives the right to receive any Distribution on such Old Capital
Securities accumulated from and including January 31, 1997. Accordingly, holders
of Exchange Capital Securities as of the record date for the payment of
Distributions on August 1, 1997 will be entitled to Distributions accumulated
from and including January 31, 1997.
 
     The undersigned will, upon request, execute and deliver any additional
documents deemed by the Trust or the Exchange Agent to be necessary or desirable
to complete the exchange, sale, assignment and transfer of the Old Capital
Securities tendered hereby. All authority herein conferred or agreed to be
conferred in this Letter of Transmittal shall survive the death or incapacity of
the undersigned and any obligation of the undersigned hereunder shall be binding
upon the heirs, executors, administrators, personal representatives, trustees in
bankruptcy, legal representatives, successors and assigns of the undersigned.
Except as stated in the Prospectus, this tender is irrevocable.
 
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                              HOLDER(S) SIGN HERE
                         (SEE INSTRUCTIONS 2, 5 AND 6)
      (NOTE: SIGNATURE(S) MUST BE GUARANTEED IF REQUIRED BY INSTRUCTION 2)
 
Must be signed by registered holder(s) exactly as name(s) appear(s) on
Certificates(s) for the Old Capital Securities hereby tendered or on a security
position listing, or by any person(s) authorized to become the registered
holder(s) by endorsements and documents transmitted herewith (including such
opinions of counsel, certificates and other information as may be required by
the Trust or the Exchange Agent to comply with the restrictions on transfer
applicable to the Old Capital Securities). If signature is by an
attorney-in-fact, executor, administrator, trustee, guardian, officer of a
corporation or another acting in a fiduciary capacity or representative
capacity, please set forth the signer's full title. See Instruction 5.
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
                          (Signature(s) of Holder(s))
 
Date , 1997
 
Name(s)
                                 (Please Print)
 
- --------------------------------------------------------------------------------
 
Area Code(s) and Telephone Number
 
- --------------------------------------------------------------------------------
               (Tax Identification or Social Security Number(s))
 
                           GUARANTEE OF SIGNATURE(S)
                           (SEE INSTRUCTIONS 2 AND 5)
 
Authorized Signature
 
Name
                                 (Please Print)
 
Date , 1997
 
Capacity or Title
 
Name of Firm
 
Address
                               (Include Zip Code)
 
Area Code(s) and Telephone Number
 
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                         SPECIAL ISSUANCE INSTRUCTIONS
                         (SEE INSTRUCTIONS 1, 5 AND 6)
 
     To be completed ONLY if Exchange Capital Securities and/or any Old Capital
Securities that are not tendered are to be issued in the name of someone other
than the registered holder of the Old Capital Securities whose name(s) appear(s)
above.
 
Issue:
 
[ ] Exchange Capital Securities to:
 
[ ] Old Capital Securities not tendered to:
 
Name
                             (PLEASE TYPE OR PRINT)
 
Address
 
- ---------------------------------------------------------
 
- ---------------------------------------------------------
                               (INCLUDE ZIP CODE)
 
- ---------------------------------------------------------
                  (TAX IDENTIFICATION OR SOCIAL SECURITY NO.)
 
                         SPECIAL DELIVERY INSTRUCTIONS
                         (SEE INSTRUCTIONS 1, 5 AND 6)
 
     To be completed ONLY if Exchange Capital Securities and/or any Old Capital
Securities that are not tendered are to be sent to someone other than the
registered holder of the Old Capital Securities whose name(s) appear(s) above,
or to the registered holder(s) at an address other than that shown above.
 
Mail:
 
[ ] Exchange Capital Securities to:
 
[ ] Old Capital Securities not tendered to:
 
Name
                             (PLEASE TYPE OR PRINT)
 
Address
 
- ---------------------------------------------------------
 
- ---------------------------------------------------------
                               (INCLUDE ZIP CODE)
 
- ---------------------------------------------------------
                  (TAX IDENTIFICATION OR SOCIAL SECURITY NO.)
 
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                                  INSTRUCTIONS
 
         FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFER
 
     1. DELIVERY OF LETTER OF TRANSMITTAL AND CERTIFICATES; GUARANTEED DELIVERY
PROCEDURES. This Letter of Transmittal is to be completed either if (a) tenders
are to be made pursuant to the procedures for tender by book-entry transfer set
forth in "The Exchange Offer -- Procedures for Tendering Old Capital Securities"
in the Prospectus and an Agent's Message is not delivered or (b) Certificates
are to be forwarded herewith. Timely confirmation of a book-entry transfer of
such Old Capital Securities into the Exchange Agent's account at DTC (a
"book-entry confirmation"), or Certificates as well as this Letter of
Transmittal (or facsimile thereof), properly completed and duly executed, with
any required signature guarantees, and any other documents required by this
Letter of Transmittal, must be received by the Exchange Agent at its addresses
set forth herein on or prior to the Expiration Date. Tenders by book-entry
transfer may also be made by delivering an Agent's Message in lieu of this
Letter of Transmittal. The term "Agent's Message" means a message, transmitted
by DTC to and received by the Exchange Agent and forming a part of a book-entry
confirmation, which states that DTC has received an express acknowledgment from
the DTC participant, which acknowledgment states that such participant has
received and agrees to be bound by the Letter of Transmittal (including the
representations contained herein) and that the Trust and the Company may enforce
the Letter of Transmittal against such participant. Old Capital Securities may
be tendered in whole or in part in any integral multiples of $1,000 Liquidation
Amount (one Capital Security) notwithstanding the requirement, applicable to all
other transfers of Old Capital Securities, of a minimum transfer amount of
$100,000 in Liquidation Amount. For purposes of tenders of Old Capital
Securities in the Exchange Offer, the requirement for minimum transfers of
$100,000 Liquidation Amount will be waived.
 
     Holders who wish to tender their Old Capital Securities and (i) who cannot
complete the procedures for delivery by book-entry transfer on a timely basis,
(ii) who cannot deliver their Old Capital Securities, this Letter of Transmittal
and all other required documents to the Exchange Agent on or prior to the
Expiration Date or (iii) whose Old Capital Securities are not immediately
available may tender their Old Capital Securities by properly completing and
duly executing a Notice of Guaranteed Delivery pursuant to the guaranteed
delivery procedures set forth in "The Exchange Offer -- Procedures for Tendering
Old Capital Securities" in the Prospectus. Pursuant to such procedures: (a) such
tender must be made by or through an Eligible Institution (as defined below);
(b) a properly completed and duly executed Notice of Guaranteed Delivery,
substantially in the form accompanying this Letter of Transmittal, must be
received by the Exchange Agent on or prior to the Expiration Date; and (c) the
Certificates (or a book-entry confirmation) representing tendered Old Capital
Securities, in proper form for transfer, together with a Letter of Transmittal
(or facsimile thereof or Agent's Message in lieu thereof), properly completed
and duly executed, with any required signature guarantees and any other
documents required by this Letter of Transmittal, must be received by the
Exchange Agent within three (3) Nasdaq Stock Market trading days after the date
of execution of such Notice of Guaranteed Delivery, all as provided in "The
Exchange Offer -- Procedures for Tendering Old Capital Securities" in the
Prospectus.
 
     The Notice of Guaranteed Delivery may be delivered by hand or transmitted
by facsimile or mail to the Exchange Agent, and must include a guarantee by an
Eligible Institution in the form set forth in such Notice. For Old Capital
Securities to be properly tendered pursuant to the guaranteed delivery
procedure, the Exchange Agent must receive a Notice of Guaranteed Delivery on or
prior to the Expiration Date. As used herein and in the Prospectus, "Eligible
Institution" means a firm or other entity identified in Rule 17Ad-15 under the
Exchange Act as "an eligible guarantor institution," including (as such terms
are defined therein) (i) a bank; (ii) a broker, dealer, municipal securities
broker or dealer or government securities broker or dealer; (iii) a credit
union; (iv) a national securities exchange, registered securities association or
clearing agency; or (v) a savings association that is a participant in a
Securities Transfer Association.
 
THE METHOD OF DELIVERY OF CERTIFICATES, THIS LETTER OF TRANSMITTAL AND ALL OTHER
REQUIRED DOCUMENTS IS AT THE OPTION AND SOLE RISK OF THE TENDERING HOLDER AND
THE DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE
AGENT. IF DELIVERY IS BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED,
PROPERLY INSURED, OR OVERNIGHT DELIVERY SERVICE IS RECOMMENDED. IN ALL CASES,
SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.
 
     Neither the Company nor the Trust will accept any alternative, conditional
or contingent tenders. Each tendering holder, by execution of a Letter of
Transmittal (or facsimile thereof), or an Agent's Message in lieu thereof,
waives any right to receive any notice of the acceptance of such tender.
 
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     2. GUARANTEE OF SIGNATURES. No signature guarantee on this Letter of
Transmittal is required if:
 
          (i) this Letter of Transmittal is signed by the registered holder
     (which term, for purposes of this document, shall include any participant
     in DTC whose name appears on a security position listing as the owner of
     the Old Capital Securities) of Old Capital Securities tendered herewith,
     unless such holder(s) has completed either the box entitled "Special
     Issuance Instructions" or the box entitled "Special Delivery Instructions"
     above, or
 
          (ii) such Old Capital Securities are tendered for the account of a
     firm that is an Eligible Institution.
 
     In all other cases, an Eligible Institution must guarantee the signature(s)
on this Letter of Transmittal. See Instruction 5.
 
     3. INADEQUATE SPACE. If the space provided in the box captioned
"Description of Old Capital Securities" is inadequate, the Certificate number(s)
and/or the Liquidation Amount of Old Capital Securities and any other required
information should be listed on a separate signed schedule which is attached to
this Letter of Transmittal.
 
     4. PARTIAL TENDERS AND WITHDRAWAL RIGHTS. Tenders of Old Capital Securities
will be accepted in whole or in part in any integral multiples of $1,000
Liquidation Amount (one Capital Security) notwithstanding the requirement,
applicable to all other transfers of Old Capital Securities, of a minimum
transfer amount of $100,000 in Liquidation Amount. For purposes of tenders of
Old Capital Securities in the Exchange Offer, the requirement for minimum
transfers of $100,000 Liquidation Amount will be waived. If less than all the
Old Capital Securities evidenced by any Certificate submitted are to be
tendered, fill in the Liquidation Amount of Old Capital Securities which are to
be tendered in the box entitled "Liquidation Amount of Old Capital Securities
Tendered." In such case, new Certificate(s) for the remainder of the Old Capital
Securities that were evidenced by your old Certificate(s) will be sent to the
holder of the Old Capital Securities, promptly after the Expiration Date, unless
the appropriate boxes on this Letter of Transmittal are completed. All Old
Capital Securities represented by Certificates delivered to the Exchange Agent
will be deemed to have been tendered unless otherwise indicated.
 
     Except as otherwise provided herein, tenders of Old Capital Securities may
be withdrawn at any time on or prior to the Expiration Date. In order for a
withdrawal to be effective on or prior to that time, a written, telegraphic,
telex or facsimile transmission of such notice of withdrawal must be timely
received by the Exchange Agent at one of its addresses set forth above or in the
Prospectus on or prior to the Expiration Date. Any such notice of withdrawal
must specify the name of the person who tendered the Old Capital Securities to
be withdrawn, the aggregate Liquidation Amount of Old Capital Securities to be
withdrawn, and (if Certificates for Old Capital Securities have been tendered)
the name of the registered holder of the Old Capital Securities as set forth on
the Certificates for the Old Capital Securities, if different from that of the
person who tendered such Old Capital Securities. If Certificates for the Old
Capital Securities have been delivered or otherwise identified to the Exchange
Agent, then prior to the physical release of such Certificates for the Old
Capital Securities, the tendering holder must submit the serial numbers shown on
the particular Certificates for the Old Capital Securities to be withdrawn and
the signature on the notice of withdrawal must be guaranteed by an Eligible
Institution, except in the case of Old Capital Securities tendered for the
account of an Eligible Institution. If Old Capital Securities have been tendered
pursuant to the procedures for book-entry transfer set forth in "The Exchange
Offer -- Procedures for Tendering Old Capital Securities," the notice of
withdrawal must specify the name and number of the account at DTC to be credited
with the withdrawal of Old Capital Securities, in which case a notice of
withdrawal will be effective if delivered to the Exchange Agent by written,
telegraphic, telex or facsimile transmission on or prior to the Expiration Date.
Withdrawals of tenders of Old Capital Securities may not be rescinded. Old
Capital Securities properly withdrawn will not be deemed validly tendered for
purposes of the Exchange Offer, but may be retendered at any subsequent time on
or prior to the Expiration Date by following any of the procedures described in
the Prospectus under "The Exchange Offer -- Procedures for Tendering Old Capital
Securities."
 
     All questions as to the validity, form and eligibility (including time of
receipt) of such withdrawal notices will be determined by the Trust, in its sole
discretion, whose determination shall be final and binding on all parties.
Neither the Company, the Trust, any affiliates or assigns of the Company or the
Trust, the Exchange Agent nor any other person shall be under any duty to give
any notification of any irregularities in any notice of withdrawal or incur any
liability for failure to give any such notification. Any Old Capital Securities
which have been tendered but which are withdrawn will be returned to the holder
thereof without cost to such holder promptly after withdrawal.
 
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     5. SIGNATURES ON LETTER OF TRANSMITTAL, ASSIGNMENTS AND ENDORSEMENTS. If
this Letter of Transmittal is signed by the registered holder(s) of the Old
Capital Securities tendered hereby, the signature(s) must correspond exactly
with the name(s) as written on the face of the Certificate(s) without
alteration, enlargement or any change whatsoever.
 
     If any of the Old Capital Securities tendered hereby are owned of record by
two or more joint owners, all such owners must sign this Letter of Transmittal.
 
     If any tendered Old Capital Securities are registered in different name(s)
on several Certificates, it will be necessary to complete, sign and submit as
many separate Letters of Transmittal (or facsimiles thereof) as there are
different registrations of Certificates.
 
     If this Letter of Transmittal or any Certificates or bond powers are signed
by trustees, executors, administrators, guardians, attorneys-in-fact, officers
of corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing and must submit proper evidence
satisfactory to the Company and the Trust, in their sole discretion, of such
persons' authority to so act.
 
     When this Letter of Transmittal is signed by the registered owner(s) of the
Old Capital Securities listed and transmitted hereby, no endorsement(s) of
Certificate(s) or separate bond power(s) are required unless Exchange Capital
Securities are to be issued in the name of a person other than the registered
holder(s). Signature(s) on such Certificate(s) or bond power(s) must be
guaranteed by an Eligible Institution.
 
     If this Letter of Transmittal is signed by a person other than the
registered owner(s) of the Old Capital Securities listed, the Certificates must
be endorsed or accompanied by appropriate bond powers, signed exactly as the
name or names of the registered owner(s) appear(s) on the Certificates, and also
must be accompanied by such opinions of counsel, certifications and other
information as the Trust or the Exchange Agent may require in accordance with
the restrictions on transfer applicable to the Old Capital Securities.
Signatures on such Certificates or bond powers must be guaranteed by an Eligible
Institution.
 
     6. SPECIAL ISSUANCE AND DELIVERY INSTRUCTIONS. If Exchange Capital
Securities are to be issued in the name of a person other than the signer of
this Letter of Transmittal, or if Exchange Capital Securities are to be sent to
someone other than the signer of this Letter of Transmittal or to an address
other than that shown above, the appropriate boxes on this Letter of Transmittal
should be completed. Certificates for Old Capital Securities not exchanged will
be returned by mail or, if tendered by book-entry transfer, by crediting the
account indicated above maintained at DTC unless the appropriate boxes on this
Letter of Transmittal are completed. See Instruction 4.
 
     7. IRREGULARITIES. The Company and the Trust will determine, in their sole
discretion, all questions as to the form of documents, validity, eligibility
(including time of receipt) and acceptance for exchange of any tender of Old
Capital Securities, which determination shall be final and binding on all
parties. The Company and the Trust reserve the absolute right, in their sole and
absolute discretion, to reject any and all tenders determined by them not to be
in proper form or the acceptance of which, or exchange for, may, in the view of
counsel to the Company and the Trust, be unlawful. The Company and the Trust
also reserve the absolute right, subject to applicable law, to waive any of the
conditions of the Exchange Offer set forth in the Prospectus under "The Exchange
Offer -- Conditions to the Exchange Offer" or any conditions or irregularity in
any tender of Old Capital Securities of any particular holder whether or not
similar conditions or irregularities are waived in the case of other holders.
The Company's and the Trust's interpretation of the terms and conditions of the
Exchange Offer (including this Letter of Transmittal and the instructions
hereto) will be final and binding. No tender of Old Capital Securities will be
deemed to have been validly made until all irregularities with respect to such
tender have been cured or waived. Neither the Company, the Trust, any affiliates
or assigns of the Company, the Trust, the Exchange Agent, nor any other person
shall be under any duty to give notification of any irregularities in tenders or
incur any liability for failure to give such notification.
 
     8. QUESTIONS, REQUESTS FOR ASSISTANCE AND ADDITIONAL COPIES. Questions and
requests for assistance may be directed to the Exchange Agent at its address and
telephone number set forth on the front of this Letter of Transmittal.
Additional copies of the Prospectus, this Letter of Transmittal and the Notice
of Guaranteed Delivery may be obtained from the Exchange Agent or from your
broker, dealer, commercial bank, trust company or other nominee.
 
     9. WAIVER OF CONDITIONS. The Company and the Trust reserve the absolute
right, subject to applicable law, to waive satisfaction of any or all conditions
enumerated in the Prospectus.
 
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     10. NO CONDITIONAL TENDERS. No alternative, conditional or contingent
tenders will be accepted. All tendering holders of Old Capital Securities, by
execution of this Letter of Transmittal, shall waive any right to receive notice
of the acceptance of Old Capital Securities for exchange.
 
     Neither the Company, the Trust, the Exchange Agent nor any other person is
obligated to give notice of any defect or irregularity with respect to any
tender of Old Capital Securities nor shall any of them incur any liability for
failure to give any such notice.
 
     11. LOST, DESTROYED OR STOLEN CERTIFICATES. If any Certificate(s)
representing Old Capital Securities have been lost, destroyed or stolen, the
holder should promptly notify the Exchange Agent. The holder will then be
instructed as to the steps that must be taken in order to replace the
Certificate(s). This Letter of Transmittal and related documents cannot be
processed until the procedures for replacing lost, destroyed or stolen
Certificate(s) have been followed.
 
     12. SECURITY TRANSFER TAXES. Holders who tender their Old Capital
Securities for exchange will not be obligated to pay any transfer taxes in
connection therewith. If, however, Exchange Capital Securities are to be
delivered to, or are to be issued in the name of, any person other than the
registered holder of the Old Capital Securities tendered, or if a transfer tax
is imposed for any reason other than the exchange of Old Capital Securities in
connection with the Exchange Offer, then the amount of any such transfer tax
(whether imposed on the registered holder or any other persons) will be payable
by the tendering holder. If satisfactory evidence of payment of such taxes or
exemption therefrom is not submitted with the Letter of Transmittal, the amount
of such transfer taxes will be billed directly to such tendering holder.
 
     IMPORTANT: THIS LETTER OF TRANSMITTAL (OR FACSIMILE THEREOF) AND ALL OTHER
REQUIRED DOCUMENTS MUST BE RECEIVED BY THE EXCHANGE AGENT ON OR PRIOR TO THE
EXPIRATION DATE.
 
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