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<p>[QUOTE=&quot;Kurisu, post: 7634488, member: 117063&quot;]To be more specific...we try to do things to &quot;restore&quot; coins rather than clean them. Acetone doesn&#039;t etch away at the metal on the coin...it&#039;s one one of the ways to try to reveal the original surface with out abrasion. Although the original surface is never original once it&#039;s aged. Sometimes using acetone or another method reveals a slightly more original surface that has been protected by the &#039;gunk&#039;...so sometimes a little darker spot is more pleasing (and will still allow a coin to get graded rather than rejected for cleaning) than a spot of fresh surface that has obviously been cleaned... and by cleaned I mean restored <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie85" alt=":smuggrin:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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