1964d wrong planchet error?

Discussion in 'Error Coins' started by zmemarine, Sep 13, 2026 at 5:10 PM.

  1. zmemarine

    zmemarine Junior Member

    Coin weighs 2.8 grams. Slightly smaller than a regular nickel. Very thin. Any ideas?
     

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    zmemarine, Sep 13, 2026 at 5:10 PM
    #1
    alurid likes this.
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  3. alurid

    alurid Well-Known Member

    I think your coin may have been part of a school sciece experiment, having to do with electrolysis that redused the weight. A soak in mild acids can also produce a coin that look similar to your's.
     
    alurid, Sep 13, 2026 at 5:42 PM
    #2
    Mr. Numismatist likes this.
  4. Mr. Numismatist

    Mr. Numismatist Strawberry Token Enthusiast

    I was thinking the same. Reduced size/weight from a chemical (acid?) reaction.
     
    Mr. Numismatist, Sep 13, 2026 at 5:48 PM
    #3

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