1982 Zinc cent missing copper identification

Discussion in 'US Coins Forum' started by Fropa, Nov 22, 2007.

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  1. rlm's cents

    rlm's cents Numismatist

    My book says thatthe sp. gr. for mercury is 13.54 and copper is 8.96. That is 51% heavier in my math.
     
    rlm's cents, Nov 30, 2007
    #21 + Quote Reply
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  3. Fropa

    Fropa Senior Member

    I got my scale today and weighed the cent. It weighs 2.51g.
     
    Fropa, Dec 4, 2007
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  4. GDJMSP

    GDJMSP Numismatist Moderator

    As I said in the beginning, I think it's the real deal. Only way you will know for sure is to have it authenticated.
     
    GDJMSP, Dec 4, 2007
    #23 + Quote Reply
  5. Conder101

    Conder101 Numismatist

    You are correct sir, I was wrong on that point.. I was working from memory and I thought the SG of Mercury was 11.5 OK so the mercury layer as thick as a copper layer would be .08 grams and you would still have to have a layer three times as thick to be sure of exceeding the mint tolerance. Anything less and the scale could still show a within tolerance weight so weighing it still doesn't really tell you anything.

    Still easier to fake with a simple electroplating.
     
    Conder101, Dec 7, 2007
    #24 + Quote Reply
  6. phdunay

    phdunay Member

    How much would you pay for a cent missing its copper plating in AU condition?
     
    phdunay, Mar 11, 2012
    #25 + Quote Reply
  7. ikandiggit

    ikandiggit Currency Error Collector

    $5-$15 Dealers retail them for about $10-$25
     
    ikandiggit, Mar 11, 2012
    #26 + Quote Reply
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