China Republic; "Hong Kong Shanghai Banking Corporation", 1921, obverse and reverse uniface die proofs of BWC engraved, $5; obverse in monocolour blue, fortress at left, rock at right, HSBC emblem centre, bank title above & HANKOW below, large size 21.5x14.5cm.; reverse in monocolour brown, HSBC building at centre, size 16x13cm, #PS336/SM Y13 for type. Both signed at lower right and graded by PCGS. AU/UNC.(2) PCGS ChAU58 / UNC62 / Ex. Spink Hong Kong Auction 22 jan 2011 Lot 344 Sold for HK$12,000