Banco Nacional Ultramarino, St Thomas & Prince, specimen 20 Escudos, 1 January 1921, no serial number, red SPECIMEN overprint, small SPECIMEN and large CANCELLED perforation, and two cancellation holes, specimen number 2 inked in top right corner, mounting traces and some thinning to the left margin, in PMG holder 62, uncirculated
Pick 23s, BNU ST33s £200-£260