Where -
(a) the business of any of the banks agreed to be amalgamated includes the business of acting as trustee, executor or guardian or in any other fiduciary capacity, and
(b) that bank was or is appointed to act as a personal representative, trustee or guardian or in any other fiduciary capacity by an instrument consisting of -
(i) an order of a court,
(ii) a trust deed, settlement, covenant or agreement, or
(iii) a will, codicil or other testamentary instrument or a grant of administration,
or by any testamentary act other than those aforesaid, whether the instrument, grant or act was made, executed or done before or after the amalgamation day,
the instrument, grant or act shall as from the amalgamation day be read and construed and have effect as if for any reference therein to that bank there were substituted a reference to the amalgamated bank.