Branch Mint Proofs

1861-O Half Dollar Mystery: Rare Specimen Connects Three Governments and a Mint in Rebellion

Auctions CoinWeek - August 31, 2026

Who Struck This Rare 1861-O Half Dollar? A Civil War Mint Mystery Deepens In 1861, the New Orleans Mint changed hands as the United States...

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Branch Mint Proofs

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1861-O Half Dollar Mystery: Rare Specimen Connects Three Governments and a Mint in Rebellion

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