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<p>[QUOTE=&quot;Conder101, post: 2478116, member: 66&quot;]And how do you know that?</p><p><br /></p><p><br /></p><p>Would it?&nbsp; Mint tolerance on a cent is +/-.13 grams so straight from the mint it could weigh from 2.98 grams to 3.23 grams so the fact that yours weighs 3.11 grams doesn&#039;t mean it hasn&#039;t been plated.</p><p><br /></p><p><br /></p><p>Only if the fine detail is smaller than .0005 inches, or the plater just gobbed on the material.</p><p><br /></p><p>&nbsp;I&#039;m with DCarr here someone some some experience at plating could plate it with nickel and then gold and you would never know it by visual or weight inspection.</p><p><br /></p><p>A specific gravity test might tell you something, but not much.&nbsp; The gold would be such a small amount that it probably would not register within your error tolerance, and nickel is basically the same SG as copper so a plated copper cent would probably have the same SG as an unplated one (To within your tolerance error)&nbsp; The experimental alloys maybe not.&nbsp; I know aluminum wouldn&#039;t, nor would the copper clad steel. (But it isn&#039;t that one because it isn&#039;t strongly attracted to the magnet.)[/QUOTE]</p><p><br /></p>

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