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<p>[QUOTE=&quot;cj415, post: 5358996, member: 30598&quot;]There was a great movie (I can&#039;t remember the name) where an art forger was melting antique toy soldiers from the 17 through 19th centuries and mixing paint pigments in with those melted metals. It fooled all of the X-Ray and chromatographs that people because all readings showed up with the properties on old metal. </p><p><br /></p><p>I&#039;m not a metallurgist, but I believe melting actual cents would separate the metals.</p><p><br /></p><p>Otherwise, counterfeiters will be doing the same with other coins. They would be melting a cull Morgan (for less than $20) and re-strike it into an 1895 Morgan with 100x.&nbsp; Wouldn&#039;t they? Then the Sigma tests would all be thwarted. </p><p><br /></p><p>Nonetheless, I know there are lots of Sigma skeptics, so I appreciate the input. I&#039;ll try it on a Sigma unit and see what happens. I wish I could afford a $15k XFR gun![/QUOTE]</p><p><br /></p>

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