56A (58a) 1956 1½a on 1½d green Q Elizabeth II of Great Britain, wmkd St. Edward's Crown, perf 14, surcharged "1½ ANNAS" (SG Type 3) in error on this watermark, most of the known copies emanated through Southern Stamp Services packet making division w discovered it while sorting out a shipment of mission mixture received from the Middle East, a very rare and difficult stamp, seldom seen and significantly undercatalogued, lightly canceled.
