SOUTH AFRICA 1964 (MNH) 1C KAFFERBOOM FLOWER CYL BLOCKS, RSA WMK
1c Kafferboom Flower cylinder S25–S23A and S25–S23B blocks x 4, type II design, perf 15 x 14, RSA watermark. Fresh and fine. Mint never hinged. SG227; SC289; SACC226c
Note: the RSA watermark reads correctly when viewed from the front of the stamps