Mint Error Coins

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Mint Error Coins

Mint error coins result from technical failures during the minting process, producing unique pieces highly sought after by specialized collectors. These errors include off‑center strikes, planchet flaws or metal impurities, clipped or incomplete planchets, thick planchets, unstruck blanks, defective or missing reeding, die swaps, wrong planchet errors, and misaligned core‑ring bonding in bimetallic coins. Each example reflects a genuine production anomaly, making this category a reference point for Portuguese mint error varieties.

Mint Error Coins – Off‑Center Strikes, Planchet Flaws, Wrong Dies and Bimetallic Errors

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If you are also looking for coins in a better state of conservation or in lower states than those represented on the page

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