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<p>[QUOTE=&quot;desertgem, post: 1929623, member: 15199&quot;]&quot;Just yesterday I checked some of the proof cents I have in home. And that one (1970 cent) is the same silver toning you see on some proof of different years.&quot;</p><p><br /></p><p>&quot;It&#039;s not a proof planchet.&quot;</p><p><br /></p><p>Carlos, both statements are very likely true. The coloration depends on the thickness of the chemical layer, and to some extent the &#039;smoothness&#039; of the working die surface. I have seen many non-proof cents with similar coloration, and I believe it is due to the die stage. A new, relatively little used die has smooth field sections which eventually become grainier over time/use. That is why &#039;proof dies&#039; are only used for a small number of strikes and replaced or used for business strikes in some situations.&nbsp; The first 1000 business strikes from a new die will develop the same coloration as a proof strike <span style="color: #a64dff"> IF placed in the same environment. </span>[/QUOTE]</p><p><br /></p>

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