1877-S年美国贸易银元。旧金山造币厂。反面币缘9点钟方向本有一小点,现已巧妙除去。UNITED STATES OF AMERICA. Trade Dollar, 1877-S. San Francisco Mint. PCGS Genuine--Spot Removed, Unc Details Gold Shield.KM-108. A seemingly choice example with a small area along the reverse edge at 9 oclock where a spot has been delicately polished away.