1968年汇丰银行$50正反面档案照片2组,其中一组设计与流通票截然不同,另一组设计相近,UNC,背有黏贴痕迹。The Hongkong and Shanghai Banking Corporation, $50, 2 pairs of uniface obverse and reverse photographic archive proofs, both dated 11.2.1968, with one pair showing a completely different design to that of the issued, and the other similar,unlisted with backing remanants, otherwise uncirculated (2 pairs)