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Came accross this 1988 1C Denver MM.

emeraldATVemeraldATV Posts: 4,115 ✭✭✭✭✭
in Q & A Forum

Can you give some insight.
Could it be doubled?

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    HemisphericalHemispherical Posts: 9,370 ✭✭✭✭✭

    Zinc blister/rot.

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    OldhoopsterOldhoopster Posts: 2,930 ✭✭✭✭✭

    When the cent was struck, the thin copper plating split along the side of the mm exposing the zinc underneath. The zinc is starting to corrode, making it look doubled. Split plating is common on cents in the 80s as the mint was still figuring out how strike high volumes using the new planchets

    Member of the ANA since 1982
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