I find these all the time in pocket change

Discussion in 'Error Coins' started by Pickin and Grinin, Oct 5, 2025 at 10:27 PM.

  1. Pickin and Grinin

    Pickin and Grinin Well-Known Member

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  3. SensibleSal66

    SensibleSal66 U.S Casual Collector / Error Collector

    I say definitely not. More like some kind of "toning" or plating issue in my opinion.
     
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  4. Pickin and Grinin

    Pickin and Grinin Well-Known Member

    They tend to defy the logic of a missing plating, and do not look altered.
     
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  5. KBBPLL

    KBBPLL Well-Known Member

    I wonder if it's a form of verdigris that has this appearance because it's a thin layer of copper plating over zinc. It's showing in small places next to devices and also on the reverse. Maybe @BadThad has an answer.
     
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