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<p>[QUOTE=&quot;Jaelus, post: 7806220, member: 46237&quot;]It is possible for an improperly cleaned coin to straight grade if you give it enough circulation wear to remove the improperly cleaned surfaces, though obviously this lowers the state of preservation significantly. Acetone won&#039;t do it though. It is more likely that acetone would remove contaminants that were concealing an improper cleaning.</p><p><br /></p><p>Keep in mind that the TPGs sometimes get it wrong. I&#039;ve certainly had a few coins get details grades with cleaned, only to crack them out and send them back in and get straight grades. But these were coins where they obviously made a mistake (in my cases, they mistook die polish lines or excessive die deterioration for hairlines). So while those coins said they were improperly cleaned on the label, they were not actually improperly cleaned.[/QUOTE]</p><p><br /></p>

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