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<p>[QUOTE=&quot;Michael K, post: 3208038, member: 78298&quot;]It says multiple examples have come from Philly but only 1 1983-D.</p><p>But there are a couple other&nbsp; Denver coppers, 1989-D and another</p><p>(I forget the date early 90&#039;s?)</p><p>Doing quick net searches, I don&#039;t find the other Philly off metal transitionals.</p><p><br /></p><p>At the end of the article: </p><p>The results determined the coin is 93.3556 percent copper, .009 percent silver, 6.5138 zinc, 0.0434 percent nickel and 0.772 percent iron.</p><p>The standard composition should have been 95 percent copper and 5 percent zinc. </p><p><br /></p><p>How does the trace of silver get in the alloy?[/QUOTE]</p><p><br /></p>

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