Ghost Coins

The Lost 1870-S Mint Set: Inside the San Francisco Mint’s Greatest Unsolved Mystery

US Coins CoinWeek - June 10, 2026

The Ghost Coins of 1870-S: How the San Francisco Mint Created a Numismatic Legend In 1870, San Francisco officials lowered a copper casket into granite. They...

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Ghost Coins

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The Lost 1870-S Mint Set: Inside the San Francisco Mint’s Greatest Unsolved Mystery

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