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1982 Zinc cent missing copper identification
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<p>[QUOTE="Conder101, post: 303850, member: 66"]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.</p><p><br /></p><p>Still easier to fake with a simple electroplating.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 303850, member: 66"]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.[/QUOTE]
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1982 Zinc cent missing copper identification
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