South Africa 1926 1d Imperforate Vertical Pair, Spectacular

1926-27 Pretoria Typo's 1d black & carmine, IMPERFORATE VERTICAL PAIR (OR HORIZONTAL PAIRS, ONE STAMP IMPERFORATE (SG 31a var/CC 30pf). VF/M/UM block of four, the left hand stamps affected by the variety. A rare piece.