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<p>[QUOTE=&quot;doug444, post: 2624372, member: 38849&quot;]Two side issues come to mind:</p><p>1. The corrosion-like marks on the obverse may have come from a mercury test for aluminum; that would have been destructive testing, and would have ruined the coin.&nbsp; You Tube has a number of videos showing this process. </p><p><br /></p><p>2. To the best of my knowledge, ALL the aluminum cents were 1974-<span style="color: #ff0000"><b>D</b></span> coins, so your friend&#039;s wasting his time, whether or not it looks like aluminum.&nbsp; Tin plating looks like aluminum, too.[/QUOTE]</p><p><br /></p>

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