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<p>[QUOTE=&quot;Nyatii, post: 2703659, member: 85686&quot;]About a month ago, I had an average Kennedy Half Dollar with a big wad of mint colored gum hardened to the surface. After repeated soakings in Acetone for several days, the gum dissolved/floated off. The coin had a greenish blotch on it from the gum. I&#039;m wondering if the die from the gum mixed with saliva, etched itself into the coin leaving the green stain.[/QUOTE]</p><p><br /></p>

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