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<p>[QUOTE=&quot;Oldhoopster, post: 8230586, member: 84179&quot;]Most chemical cleaning will be noticeable to many collectors as well.&nbsp; There are professionals, such as those working for the conservation services of the top TPGs that can clean some coins so it isn&#039;t noticeable, but that is very difficult to do. You need to be very knowledgeable of chemistry, metallurgy, and luster formation.&nbsp; Even at that, there are many coins that can&#039;t be conserved without the work being visible.&nbsp; </p><p><br /></p><p>I like the disclaimer, but you should change the wording from &quot;could&quot; to ALWAYS lower the numismatic value (unless it is damaged to the point of being only worth bullion or face value)[/QUOTE]</p><p><br /></p>

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