1873-S年贸易银壹圆。旧金山造币厂。流通甚广,多次被试验纯度及质量,在东方各处流通,蕴藏许多故事。UNITED STATES OF AMERICA. Trade Dollar, 1873-S. San Francisco Mint. PCGS AU-55. Chop Mark.KM-108. Well traveled and extensively checked for quality and purity, this example had quite a journey around the orient that could tell an interesting story.