Banco Nacional Ultramarino, Angola, specimen 2 1/2 escudos, 1 January 1921, black serial number 000000, bue, lilac and orange, Fancisco de Oliveira Chamico at left, steamship seal at right, arms low centre, two printed signatures below, blue ANGOLA overprint at top centre (Pick 56s), in PMG holder 62 UNCIRCULATED, red SPECIMEN overprint, scarce