SOUTH AFRICA 1973 (MNH) 10C CASTLE ENTRANCE CYL BLOCKS, NO WATERMARK
10c Castle Entrance, cylinder 512–511A and 512–511B blocks x 4, redrawn design, perf 12½ x 12½, phosphorised paper, no watermark. Fresh and fine. Mint never hinged. SG321; SC382; SACC333