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<p>[QUOTE=&quot;foundinrolls, post: 737155, member: 4350&quot;]This is simple...any single spot where the copper plating is compromised can result in a spot of rot forming.&nbsp; It can be in one tiny place and nowhere else on the coin.&nbsp; The underlying zinc is incredibly reactive to the environment. </p><p><br /></p><p>The spot can take on any shape depending upon the shape of the &quot;injury&quot; to the coin and how the copper plating was damaged.&nbsp; </p><p><br /></p><p>The fact that it happens to resemble a letter is coincidental and we have seen that here at least twenty times on other threads where zinc rot caused an issue.&nbsp; The last one I can think of is Michelle&#039;s coin with a single spot of rot.&nbsp;&nbsp; That coin was sent off to be looked at by Ken Potter and it came back as , in fact being a spot of rot (What&nbsp; I said from day one).&nbsp; </p><p><br /></p><p>A recent email that I had had a person asking how a line of D&#039;s got on the front of his Lincoln cent.&nbsp; The answer was that under magnification,&nbsp; the &quot;D&quot;s were damage caused by the reeded edge of another coin.&nbsp; The damage happened to look like D&#039;s as the rot progressed.</p><p><br /></p><p>The last thing is that there is no part of the minting process that could cause this.&nbsp; </p><p><br /></p><p>Actually,&nbsp; this is my last point for now.&nbsp;&nbsp; I&#039;ve seen this tens of thousands of times on coins that I search through.&nbsp; If I can&#039;t instantaneously identify a spot of rot by now,&nbsp; i should give up trying<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />&nbsp; </p><p><br /></p><p>I don&#039;t ever guess on something unless I say that I am guessing.&nbsp; I&#039;ve been at this a long time and there isn&#039;t much that I haven&#039;t seen&nbsp; first hand, more times than i could ever count.</p><p><br /></p><p>Thanks,</p><p>Bill[/QUOTE]</p><p><br /></p>

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