Category Archives: Madrid Mint

Mike Byers Mint Error News – Unique Obverse & Reverse Die Trials for Spain’s 1856 100 Reales

Struck in Gilt Copper – Uniface – UNIQUE & UNLISTED NEW DISCOVERY   This is a unique and spectacular set of obverse and reverse die trials for Spain’s 1856 Proof gold 100 Reales. They combine rarity (unique), history (struck to test the dies for the newly designed 100 Reales), and mystique (Queen Isabella II approved […]

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