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<p>[QUOTE=&quot;Oldhoopster, post: 8533967, member: 84179&quot;]It looks like heat tint (toning)</p><p><br /></p><p>Years ago, I worked for a company that made copper plated cookware.&nbsp; A consumer complaint was that the copper came off.&nbsp; It didn&#039;t.&nbsp; Under certain heating conditions with gas or propane, the copper can turn a silvery color. The copper finish came back with a little polish</p><p><br /></p><p>Your cent has the same coloration as those copper plated pans.&nbsp; Get an XRF to see if there is any copper (note: an XRF scan of a zincoln cent will show both copper and zinc since then plating is so thin)[/QUOTE]</p><p><br /></p>

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