1970年代香港铸币局银锭。 重157.71克。四枚戳记,含香港铸币局戳记,正面打有 99.9 。 HONG KONG. Specie Office Silver Ingot, ND (ca. 1970). PCGS AU-55. KMX-B13. Weight: 157.71 gms. A bar with four stamps including the seal of the Hong Kong Shanghai Specie Office, and 999.9 on the obverse.