SOUTH AFRICA 1973 (MNH) 50C CAPE TOWN HARBOUR BLOCKS, NO WATERMARK
50c Cape Town Harbour cylinder 522–521A and 522–521B blocks x 4, redrawn design, perf 12½ x 12½, phosphorised paper, no watermark. Fresh and fine. Mint never hinged. SG324; SC384; SACC336
