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Can Anyone explain this Lincoln Roughy :)
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<p>[QUOTE="rlm's cents, post: 510344, member: 7957"]Looking at the coins in hand, they look more like organized small bubbles (separations) to me. That much reminds me of something interfering with the plating sticking to the base metal. One thing I can say it that they are significantly wider (dramatically so) than any die polishing lines I have ever seen and I have never seen a die polish line be other that a continuous line. They run from A to B without interruption. These do not. In short, there is nothing about these line that reminds me of die polish.</p><p><br /></p><p>And then there is the fact that these are proofs. The mint may not have the best quality control, but I find it unlikely that, if the were dies that obviously impaired, they could allow their continued use.</p><p><br /></p><p>And, although I have not seen as many other proofs, I would say between 1/4 and 1/3 of my Lincolns from that era exhibit that effect to one extent or another. I find it extremely unlikely that I would not have seen at least one of these in another series if they were being caused by die polishing.[/QUOTE]</p><p><br /></p>
[QUOTE="rlm's cents, post: 510344, member: 7957"]Looking at the coins in hand, they look more like organized small bubbles (separations) to me. That much reminds me of something interfering with the plating sticking to the base metal. One thing I can say it that they are significantly wider (dramatically so) than any die polishing lines I have ever seen and I have never seen a die polish line be other that a continuous line. They run from A to B without interruption. These do not. In short, there is nothing about these line that reminds me of die polish. And then there is the fact that these are proofs. The mint may not have the best quality control, but I find it unlikely that, if the were dies that obviously impaired, they could allow their continued use. And, although I have not seen as many other proofs, I would say between 1/4 and 1/3 of my Lincolns from that era exhibit that effect to one extent or another. I find it extremely unlikely that I would not have seen at least one of these in another series if they were being caused by die polishing.[/QUOTE]
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Can Anyone explain this Lincoln Roughy :)
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