(1)A bill of exchange or promissory note drawn or made on or after the appointed day shall be invalid if the sum payable is an amount of money wholly or partly in shillings or pence.
(2)A bill of exchange or promissory note for an amount wholly or partly in shillings or pence dated 15th February 1971 or later shall be deemed to have been drawn or made before 15th February 1971 if it bears a certificate in writing by a banker that it was so drawn or made.