1922年上海铜质纪念章。康涅狄格州铸币厂。 CHINA. Shanghai Mint Bronze Medallic Trial, 1922. Connecticut (Waterbury Farrel Foundry) Mint. PCGS AU-50. 直径:39毫米。颇珍罕而具趣味的版别,美国康涅狄格州Waterbury Farrel Foundry & Machine Company为上海造币厂试验器械而铸。 Diameter: 39mm. A fairly SCARCE and interesting this trial striking was produced in Connecticut in the United States at the Waterbury Farrel Foundry & Machine Company as a test for machinery intended for use at the Shanghai Mint.