Banco Nacional Ultramarino, Angola, specimen 100 escudos, 1 January 1921, no serial numbers, violet, pale green and pale orange, Fancisco de Oliveira Chamico at left, steamship seal at right, arms low centre, two printed signatures below, red ANGOLA overprint at top centre (Pick 61s), in PMG holder CHOICE UNCIRCULATED, red SPECIMEN overprint, rare