The described coin represents a specific issue of United States silver coinage produced at the San Francisco Mint in 1886. Its nominal value was one dollar, and it was composed of ninety percent silver and ten percent copper. These coins were a product of the Bland-Allison Act, intended to support the silver mining industry.
This particular piece holds numismatic value due to its historical significance, silver content, and potential rarity depending on its condition and mintage numbers. Collectors are drawn to this coin for its role in American financial history and its aesthetic design. The San Francisco mint mark (“S”) indicates it was produced in a specific location, which can influence its collectibility.