SOUTH AFRICA 1961 (MNH) 2½C GROOT CONSTANTIA CYLINDER BLOCKS, TYPE I
2½c Groot Constantia cylinder Y4A–Y1A, Y4B–Y1B, Y4C–Y1C and Y4D–Y1D blocks x 4, type I design, coat of arms sideways watermark. Fresh and fine. Mint never hinged. SG202aw; SC258var; SACC201
Note: the top of the arms watermark faces right when viewed from the back of the stamps