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<p>[QUOTE=&quot;Cloudsweeper99, post: 109127, member: 3011&quot;]I thought I read someplace that acetone can be harmful to copper coins but I don&#039;t recall where and I don&#039;t know what the alternative treatment would be for copper coins with pvc.</p><p><br /></p><p>Comments and corrections are welcome because I&#039;m going from memory here, which may be incorrect.[/QUOTE]</p><p><br /></p>

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