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<p>[QUOTE=&quot;desertgem, post: 2922312, member: 15199&quot;]First, I do not believe using acetone, 95 %&nbsp; ETOH or Isopropyl alcohol, or xylene is coin doctoring as, none have any reaction with the pure metal of a coin, and certainly doesn&#039;t affect the metal flow lines that determine luster. It may change the appearance of the coin as removing PVC Plasticizer residue may expose metallic surface that is not toned the same as the rest. It could be called cleaning, but not doctoring IMO. I have done this many times, and the TPGs gave me a clean slab. Mirror Proofs have extremely shallow flow lines, and cloudiness can occur if dissolved material evaporates in the flow lines, so I do not use it with them. IMO Jim[/QUOTE]</p><p><br /></p>

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