Exhibit 4

                Form of Stock Certificate of the Holding Company








                              COHOES BANCORP, INC.

              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

THIS CERTIFIES THAT
                                 S P E C I M E N
is the owner of:

                  FULLY PAID AND NONASSESSABLE SHARES OF COMMON
                    STOCK $.01 PAR VALUE PER SHARE OF COHOES
                                  BANCORP, INC.

The shares  represented by this certificate are  transferable  only on the stock
transfer books of the Corporation by the holder of record hereof, or by his duly
authorized  attorney  or  legal  representative,  upon  the  surrender  of  this
certificate  properly  endorsed.  This  certificate  and the shares  represented
hereby  are  issued  and  shall be held  subject  to all the  provisions  of the
Certificate of  Incorporation  of the  Corporation  and any  amendments  thereto
(copies  of  which  are  on  file  at the  principal  executive  offices  of the
Corporation),  to all of which  provisions  the  holder  by  acceptance  hereof,
assents.

         This  certificate is not valid unless  countersigned  and registered by
the Transfer Agent and Registrar. The shares represented by this Certificate are
not insured by the Federal Deposit Insurance Corporation or any other government
agency.

         IN WITNESS THEREOF, COHOES BANCORP, INC. has caused this certificate to
be executed by the facsimile  signatures of its duly authorized officers and has
caused a facsimile of its corporate seal to be hereunto affixed.


Dated:_________________


_______________________          [SEAL]            _____________________________
Richard A. Ahl                                     Harry L. Robinson
Secretary                                          President and Chief Executive
                                                      Officer







                              COHOES BANCORP, INC.

         The  Corporation's   certificate  of  incorporation  provides  that  no
"person" (as defined in the  certificate  of  incorporation)  who  "beneficially
owns" (as defined in the certificate of  incorporation)  in excess of 10% of the
outstanding  shares of the Corporation shall be entitled to vote any shares held
in excess of such limit.  This  provision of the  certificate  of  incorporation
shall  not  apply to an  acquisition  of  securities  of the  Corporation  by an
employee stock purchase plan or other employee  benefit plan of the  Corporation
or any of its subsidiaries.

         The  Corporation's   certificate  of  incorporation   also  includes  a
provision the general effect of which is to require the affirmative  vote of the
holders of 80% of the  outstanding  voting shares of the  Corporation to approve
certain "business combinations" (as defined in the certificate of incorporation)
between  the  Corporation  and a  stockholder  owning  in  excess  of 10% of the
outstanding shares of the Corporation.  However,  only the affirmative vote of a
majority of the outstanding  shares or such vote as is otherwise required by law
(rather  than  the 80%  voting  requirement)  is  applicable  to the  particular
transaction if it is approved by a majority of the "disinterested directors" (as
defined in the certificate of incorporation) or, alternatively,  the transaction
satisfies certain minimum price and procedural  requirements.  The Corporation's
certificate  of  incorporation  also  contains a provision  which  requires  the
affirmative vote of holders of at least 80% of the outstanding  voting shares of
the Corporation which are not beneficially owned by the "interested  person" (as
defined in the certificate of  incorporation)  to approve the direct or indirect
purchase or other  acquisition by the  Corporation of any "equity  security" (as
defined in the certificate of incorporation) from such interested person.

         The  Corporation  will  furnish to any  stockholder  upon  request  and
without charge a full  statement of the powers,  designations,  preferences  and
relative  participating,  optional or other  special  rights of each  authorized
class  of  stock  or  series  thereof  and the  qualifications,  limitations  or
restrictions of such preferences and/or rights, to the extent that the same have
been fixed, and of the authority of the board of directors to designate the same
with respect to other series.  Such request may be made to the Corporation or to
its transfer agent and registrar.

         The following  abbreviations,  when used in the inscription on the face
of this certificate,  shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common             UNIF GIFT MIN ACT_____Custodian______
                                                           (Cust}        (Minor)
TEN ENT - as tenants by the entirety  Under Uniform Gift to Minors Act-______
                                                                      (State)
JT TEN  - as joint tenants with right of   UNIF TRANS MIN ACT____Custodian______
          survivorship and not as tenants                   (Cust)       (Minor)
          in common.                  Under Uniform Transfers to Minor Act-____
                                                                         (State)

     Additional abbreviations may also be used though not in the above list.

     For Value Received, _____________ hereby sell, assign and transfer unto





PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE
 _____________________________
|_____________________________|


_______________________________________________________________________________
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) 

_______________________________ Shares of Common Stock represented by the within
certificate, and do hereby irrevocably constitute and appoint________________ as
Attorney  to  transfer  the  said  shares  on  the  books  of  the  within named
Association with full power of substitution in the premises.


Dated______________                        ______________________________


NOTICE:  THE  SIGNATURE  TO THIS  ASSIGNMENT  MUST  CORRESPOND  WITH THE NAME AS
         WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY  PARTICULAR,  WITHOUT
         ALTERATION  OR   ENLARGEMENT  OR  ANY  CHANGE   WHATEVER.   The  shares
         represented by this  certificate are subject to a limitation  contained
         in the  Certificate  of  Incorporation  to the effect  that in no event
         shall  any  record  owner  of any  outstanding  common  stock  which is
         beneficially   owned,   directly  or   indirectly,   by  a  person  who
         beneficially owns in excess of 10% of the outstanding  shares of common
         stock (the  "Limit") be entitled or permitted to any vote in respect of
         shares held in excess of the Limit.