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<p>[QUOTE=&quot;SuperDave, post: 2269987, member: 1892&quot;]In your case - there are a thousand individual differences capable of causing differing toning rates - your cleaning process differing just slightly between each coin is likely the major factor. It&#039;s irrelevant in this case because cleaning the coins ruined them (it&#039;s not &quot;controversial,&quot; it&#039;s vandalism), but it bears mentioning that an atmosphere capable of toning coins in the middle of a tube is pretty destructive.[/QUOTE]</p><p><br /></p>

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