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<p>[QUOTE=&quot;WingedLiberty, post: 1534092, member: 26030&quot;]It&#039;s interesting when you see coins take on wild and vibrant color inside sealed (original) U.S.Mint cello packaging.&nbsp; I have never seen a blue toned 1964 proof lincoln before -- I have seen that color toning on other years though (especially 1961&#039;s), but it&#039;s rare on 1964&#039;s.&nbsp; &nbsp; It just makes me wonder what might have caused something like this?&nbsp; &nbsp; Impurities in the alloy?&nbsp; &nbsp; I have no idea.&nbsp; Since it was sealed, I have to think that environmental factors would have to have been greatly diminished.&nbsp;&nbsp; (By the way, robec did a stunning job with the photo!)&nbsp; (And a final note, this was a &quot;freebie&quot; coin from Shane at KryptoniteComics, one of the top eBay sellers of colorfully toned coins.&nbsp; Thanks Shane!)</p><p><br /></p><p><img src="https://mindstar.com/cointalk_photos/RI_WL1964LincPR.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="https://mindstar.com/cointalk_photos/1964Linc_OGP.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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