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<p>[QUOTE=&quot;James Miller, post: 3653202, member: 106185&quot;]Alright. I know you guys all think I&#039;m the new crazy guy. But I&#039;ve done some more work. I am able to pretty accurately measure the density of the penny without destroying it. The density (taking all the materials into account) link up pretty will with a 1981 Canadian planchet. It doesn&#039;t link up with any 1982 american penny. Even if the planchet was on the thin side, it would have the same composition. Or do thin planchets, just not have any zinc? I know the Royal Canadian Mint provides planchets to many countries. Could it be that leftover 1981 Canadian stock was shipped to america to mint. Since they seem the same, something like that may never be noticed. Do any of you know a way to figure out if tin is in a penny without destroying it?[/QUOTE]</p><p><br /></p>

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