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<p>[QUOTE=&quot;Mainebill, post: 2024405, member: 44004&quot;]I&#039;ve done it with no adverse effects the acetone is inert as far as coins or metals are concerned it only removes primarily synthetic compounds as in pvc as well as grease and oil based organic matter I&#039;ve put copper silver gold and copper nickel coins in varying orders and combinations in acetone with no problems actually I usually soak nearly all raw coins in it as it gets crud from circulation gone without touching patina and toning[/QUOTE]</p><p><br /></p>

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