Exhibit 3.b
Filing Fee:  $50                                              Corp. I.D. #16323



                State of Rhode Island and Providence Plantations
                        Office of the Secretary of State
                              100 North Main Street
                       Providence, Rhode Island 02903-1335

PLEASE TAKE NOTICE that the corporation must be in good standing prior to filing

                         ORIGINAL ARTICLES OF AMENDMENT
                                     TO THE
                            ARTICLES OF INCORPORATION
                                       OF

                         WASHINGTON TRUST BANCORP, INC.

     Pursuant to the provisions of Section  7-1.1-56 of the General Laws,  1956,
as  amended,  the  undersigned  corporation  adopts the  following  Articles  of
Amendment to its Articles of Incorporation:

     FIRST:  The name of the corporation is Washington Trust Bancorp, Inc.

     SECOND:  The  shareholders  of the  corporation  on April 29, 1997,  in the
manner  prescribed  by Chapter  7-1.1 of the  General  Laws,  1956,  as amended,
adopted the following amendment(s) to the Articles of Incorporation:

           FOURTH.  Capital  Stock.  The aggregate  number of shares which the
           Corporation shall have authority to issue is 30,000,000,  par  value
           $.0625 per share, all of which shares are to be a class designate as
           "Common Stock".

     THIRD:  The number of shares of the corporation  outstanding at the time of
such adoption was 4,372,302;  and the number of shares  entitled to vote thereon
was 4,372,302.

     FOURTH:  The  designation  and number of  outstanding  shares of each class
entitled to vote thereon as a class were as follows:  (If  inapplicable,  insert
"none")

           Class                                        Number of Shares
           -----                                        ----------------
           None

     FIFTH: The number of shares voted for such amendment was 3,383,485.53;  and
the number of shares voted against such amendment was 198,050.74.

     SIXTH:  The number of shares of each class  entitled  to vote  thereon as a
class voted for and against such amendment, respectively, was: (If inapplicable,
insert "none")

                                                        Number of Shares Voted
                                                        ----------------------
           Class                                        For            Against
           -----                                        ---            -------
           None


     SEVENTH:  The  manner,  if not set  forth in such  amendment,  in which any
exchange, reclassification, or cancellation of issued shares provided for in the
amendment shall be effected, is as follows: (If no change, so state) No Change


     EIGHTH:  The manner in which such amendment  effects a change in the amount
of  stated  capital,  and the  amount  of  stated  capital  as  changed  by such
amendment, are as follows: (If no change, so state) No Change


Dated: May 14, 1997

                                            WASHINGTON TRUST BANCORP, INC.



                                            By:  John C. Warren
                                                 --------------
                                                 Its President



                                            and  Harvey C. Perry II
                                                 ------------------
                                                 Its Secretary



STATE OF RHODE ISLAND    )
                         ) Sc.
COUNTY OF WASHINGTON     )

     At  Westerly  in said  county  on this  14th day of May,  1997,  personally
appeared before me John C. Warren,  who, being by me first duly sworn,  declared
that he is the President of Washington  Trust Bancorp,  Inc., that he signed the
foregoing  document as President  of the  corporation,  and that the  statements
therein contained are true.



                                                         Tawny M. Beckman
                                                   -----------------------------
                                                           Notary Public
                                                   my commission expires 7/14/97

(NOTARIAL SEAL)





STATE OF RHODE ISLAND    )
                         ) Sc.
COUNTY OF WASHINGTON     )

     At  Westerly  in said  county  on this  6th  day of May,  1997,  personally
appeared  before me Harvey C.  Perry,  II,  who,  being by me first duly  sworn,
declared that he is the Secretary of Washington  Trust  Bancorp,  Inc.,  that he
signed the  foregoing  document as  Secretary of the  corporation,  and that the
statements therein contained are true.



                                                         Tawny M. Beckman
                                                   -----------------------------
                                                           Notary Public
                                                   my commission expires 7/14/97

(NOTARIAL SEAL)