SOUTH AFRICA 1963 (MLH) 10C CASTLE ENTRANCE CYLINDER 51–121 BLOCKS
10c Castle Entrance cylinder 51A–121A and 51B–121B blocks x 4, sepia-brown and light green, perf 14 x 14, no watermark. Fresh and fine. Mint lightly hinged. SG217b; SC275var; SACC216b
