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History of Coinage
  • Lincoln Wheat cent open field revealing fine hairlines and contact marks under directional light
    American Coins

    Why Open Fields Reveal Coin Problems So Quickly

    Bypastmint September 16, 2026September 16, 2026

    Estimated Reading Time: 9 minutes A tiny contact mark can almost disappear among the lines of a portrait, lettering, or…

    Read More Why Open Fields Reveal Coin Problems So QuicklyContinue

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