1877-S年美國貿易壹圓銀幣。舊金山鑄幣廠。正面银白四射,原厂品相,反面淡淡的香檳色包浆。UNITED STATES OF AMERICA. Trade Dollar, 1877-S. San Francisco Mint. PCGS MS-61.KM-108. With a mostly blast white obverse, this Mint State exemplar yields more of a subtle champagne yellow tone upon the reverse.