SOUTH AFRICA 1974 (MNH) 20C SECRETARY BIRD CYL BLOCKS, NO WATERMARK
20c Secretary Bird cylinder 515–514–513A and 515–514–513B blocks x 4, redrawn design, perf 12½ x 12½, chalk-surfaced paper, no watermark. Fresh and fine. Mint never hinged. SG322a; SC383var; SACC335a
