Exhibit 4.6

                          CAPITAL SECURITY CERTIFICATE

      [THIS CAPITAL SECURITY IS A GLOBAL CAPITAL SECURITY WITHIN THE MEANING OF
THE DECLARATION HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE
DEPOSITORY TRUST COMPANY ("THE CLEARING AGENCY") OR A NOMINEE OF THE CLEARING
AGENCY. THIS CAPITAL SECURITY IS EXCHANGEABLE FOR CAPITAL SECURITIES REGISTERED
IN THE NAME OF A PERSON OTHER THAN THE CLEARING AGENCY OR ITS NOMINEE ONLY IN
THE LIMITED CIRCUMSTANCES DESCRIBED IN THE DECLARATION AND NO TRANSFER OF THIS
CAPITAL SECURITY (OTHER THAN A TRANSFER OF THIS CAPITAL SECURITY AS A WHOLE BY
THE CLEARING AGENCY TO A NOMINEE OF THE CLEARING AGENCY OR BY A NOMINEE OF THE
CLEARING AGENCY TO THE CLEARING AGENCY OR ANOTHER NOMINEE OF THE CLEARING
AGENCY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES.

      UNLESS THIS CAPITAL SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
OF THE CLEARING AGENCY TO THE TRUST OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE OR PAYMENT, AND ANY CAPITAL SECURITY ISSUED IS REGISTERED IN THE NAME
OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
THE CLEARING AGENCY AND ANY PAYMENT HEREON IS MADE TO CEDE & CO., 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.]

      THE CAPITAL SECURITIES WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN
BLOCKS HAVING A LIQUIDATION AMOUNT OF NOT LESS THAN $100,000 (100 CAPITAL
SECURITIES). ANY SUCH TRANSFER OF CAPITAL SECURITIES IN A BLOCK HAVING A
LIQUIDATION AMOUNT OF LESS THAN $100,000 SHALL BE DEEMED TO BE VOID AND OF NO
LEGAL EFFECT WHATSOEVER. ANY SUCH TRANSFEREE SHALL BE DEEMED NOT TO BE THE
HOLDER OF SUCH CAPITAL SECURITIES FOR ANY PURPOSE, INCLUDING BUT NOT LIMITED TO
THE RECEIPT OF DISTRIBUTIONS ON SUCH CAPITAL SECURITIES, AND SUCH TRANSFEREE
SHALL BE DEEMED TO HAVE NO INTEREST WHATSOEVER IN SUCH CAPITAL SECURITIES.


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Certificate Number: 001                          Aggregate Liquidation Amount:
CUSIP Number:                                           $

                    Certificate Evidencing Capital Securities
                                       of
                            BANKNORTH CAPITAL TRUST I

                       10.52% Capital Securities, Series B
               (liquidation amount of $1,000 per Capital Security)

      BANKNORTH CAPITAL TRUST I, a statutory business trust created under the
laws of the State of Delaware (the "Trust"), hereby certifies that ____________
(the "Holder") is the registered owner of ______________________ in aggregate
liquidation amount of Capital Securities of the Trust representing undivided
preferred beneficial interests in the assets of the Trust designated the 10.52%
Capital Securities, Series B (liquidation amount of $1,000 per Capital Security)
(the "Capital Securities"). The Capital Securities are transferable on the books
and records of the Trust, in person or by a duly authorized attorney, upon
surrender of this certificate duly endorsed and in proper form for transfer. The
designation, rights, privileges, restrictions, preferences and other terms and
provisions of the Capital Securities represented hereby are issued and shall in
all respects be subject to the provisions of the Amended and Restated
Declaration of Trust of the Trust, dated as of May 1, 1997, as the same may be
amended from time to time (the "Declaration"), including the designation of the
terms of the Capital Securities as set forth in Annex I to the Declaration.
Capitalized terms used but not defined herein shall have the meaning given them
in the Declaration. The Sponsor will provide a copy of the Declaration, the
Capital Securities Guarantee and the Indenture (including any supplement
indenture) to a Holder without charge upon written request to the Trust at its
principal place of business.

      Upon receipt of this Certificate, the Holder is bound by the Declaration
and is entitled to the benefits thereunder and to the benefits of the Capital
Securities Guarantee to the extent provided therein.

      By acceptance hereof, the Holder agrees to treat, for United States
federal income tax purposes, the Debentures as indebtedness and the Capital
Securities as evidence of indirect beneficial ownership in the Debentures.


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      IN WITNESS WHEREOF, the Trust has executed this certificate this __ day of
_________________, 1997.

                              BANKNORTH CAPITAL TRUST I


                              By:
                                  ------------------------------------------
                                  Name:
                                  Administrative Trustee


                PROPERTY TRUSTEE'S CERTIFICATE OF AUTHENTICATION

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

Dated:  ______________ __, 1997

                                         THE FIRST NATIONAL BANK OF CHICAGO,
                                              not in its individual capacity,
                                              but solely as Property Trustee

                                         By:
                                             ---------------------------------
                                                  Authorized Signatory


                               REVERSE OF SECURITY

            Distributions payable on each Capital Security will be fixed at a
rate per annum of 10.52% (the "Coupon Rate") of the liquidation amount of $1,000
per Capital Security, such rate being the rate of interest payable on the
Debentures to be held by the Property Trustee. Distributions in arrears for more
than one semi-annual period will bear interest thereon compounded semi-annually
at the Coupon Rate (to the extent permitted by applicable law). Pursuant to the
Registration Rights Agreement, in certain limited circumstances the Debenture
Issuer will be required to pay Liquidated Damages (as defined in the
Registration Rights Agreement) with respect to the Debentures. The term
"Distributions", as used herein, includes such cash distributions and any such
interest and any Liquidated Damages payable unless otherwise stated. A
Distribution is payable only to the extent that payments are made in respect of
the Debentures held by the Property Trustee and to the extent the Property
Trustee has funds legally available therefor.

      Distributions on the Capital Securities will be cumulative, will
accumulate from the most recent date to which Distributions have been paid or,
if no Distributions have been paid, from [May 1, 1997] [November 1, 1997], and 
will be payable semi-annually in arrears, on May 1 and November 1 of each year,
commencing on [November 1, 1997] [May 1, 1998], except as otherwise described
below. Distributions shall be computed on the basis of a 360-day year consisting
of twelve 30-day months. As long as no Event of Default has occurred and is
continuing under the Indenture, the Debenture Issuer has the right under the
Indenture to defer payments of interest by extending the interest payment period
at any time and from time to time on the Debentures for a period not exceeding
10 consecutive calendar semi-annual periods, including the first such semi-
annual period during such extension period (each an "Extension Period"),
provided that no Extension Period shall end on a date other than an Interest
Payment Date for the Debentures or extend beyond the Maturity Date of the
Debentures. As a consequence of such deferral, Distributions will also be
deferred. Notwithstanding such deferral, semi-annual Distributions will continue
to accumulate with interest thereon (to the extent permitted by applicable law,
but not at a rate exceeding the rate of interest then accruing on the
Debentures) at the Coupon Rate compounded semi-annually during any such
Extension Period. Prior to the termination of any Extension Period, the
Debenture Issuer 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, may not (i)
exceed 10 consecutive semi-annual periods, including the first semi-annual
period during such Extension Period, (ii) end on a date other than an Interest
Payment Date for the Debentures or (iii) extend beyond the Maturity Date of the
Debentures. Payments of accumulated Distributions will be payable to Holders as
they appear on the books and records of the Trust on the first record date
immediately preceding the end of the Extension Period. Upon the termination of
any Extension Period and the payment of all amounts then due, the Debenture
Issuer may commence a new Extension Period, subject to the above requirements.

      Subject to receipt by the Sponsor of any required regulatory approvals and
to certain other conditions set forth in the Declaration and the Indenture, the
Property Trustee may, at the direction of the Sponsor, at any time terminate the
Trust and cause the Debentures to be distributed to the holders of the
Securities in liquidation of the Trust or, simultaneously with any redemption of
the Debentures, cause a Like Amount of the Securities to be redeemed by the
Trust.

      The Capital Securities shall be redeemable as provided in the Declaration.


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                                  ASSIGNMENT

      FOR VALUE RECEIVED, the undersigned assigns and transfers this Capital
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 Capital 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 Capital 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.


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