Bidspirit auction | Bank of Canada, 1979, Specimen

Bank of Canada, 1979, Specimen Banknote - Canada, 1979. $20, P-93aS, BC-54aS, Specimen Banknote, Deep olive-green on m/c underprint with the late Queen Elizabeth II at right, Specimen overprints, S/N 00000000000 742, Printer: CBNC, PMG graded Gem Uncirculated 66 EPQ.