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1996-D Penny Volcano on Neck

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  • #1

    1996-D Penny Volcano on Neck

    Odd volcanic shape on lincoln's neck on this 1995-D--coin is a mess, I've never seen corrosion perfect, as this "pimple" is--no entry hole on reverse, so, it's just there--comment welcome!
    Cal Goddard
    Last edited by ilikeikes; 05-10-2008, 10:09 AM.
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  • #2
    This action is caused by the zinc swelling inside and breaking thru the copper layer, which was mostly commonly caused buy a trapped gas bubble betweeen the two layers. In time, the zince will oxidizes (turn to a powdery substance) and the hole will enlarge. This type of self destruction was most common on the early to mid 1980 Lincoln cents.

    BJ Neff
    Member of: ANA, CCC, CONECA, Fly-in-club, FUN, NLG & T.E.V.E.C.

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