SOUTH AFRICA 1968 (MNH) 20C SECRETARY BIRD CYL BLOCKS, TÊTE-BÊCHE WMK
20c Secretary Bird cylinder 242–243–244A and 242–243–244B blocks x 4, redrawn design, perf 14 x 14, RSA tête-bêche watermark. Scarce. Fresh and fine. Mint never hinged. SG249; SC340; SACC271
