HONG KONG 1979 (MNH) 20C REDDISH VIOLET PLATE 1A BLOCK, SPIRAL WATERMAK
20c Queen Elizabeth II traffic light/plate 1A block x 4, reddish violet, spiral multiple crown and CA sideways watermark. Fresh and fine. Mint never hinged. SG313; SC277a; YG246
Note: from the second printing released 27 March 1979