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<p>[QUOTE=&quot;SuperDave, post: 2900907, member: 1892&quot;]No. You know a <b>ton</b> about numismatics, but the fact that this is a very common phenomena with Morgans, even in this predominance, doesn&#039;t seem to be part of your personal knowledge subset.</p><p><br /></p><p><br /></p><p><br /></p><p>Because they were not altered by pressure and flow at the moment of strike, like the rest of the surface of the coin was. This is analogous to &quot;pullaway toning&quot; - why doesn&#039;t that area around the date tone like the rest? <i>Because the surface composition is different</i>.</p><p><br /></p><p>This one <i>is</i> a candidate for removal of the toning, with the proper technique. That technique probably shouldn&#039;t be <i>only</i> thiourea, given the thickness of the toning at the periphery. I know <b>how</b> I&#039;d do it if the coin were mine, but I don&#039;t know <b>if</b> I&#039;d do it. This is a 4-figure coin in 65, with a good shot at 65, and I&#039;d probably not risk that upside by removing the color. It doesn&#039;t always come out right even if you do it right.[/QUOTE]</p><p><br /></p>

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