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<p>[QUOTE=&quot;Seattlite86, post: 3576670, member: 59737&quot;]You&#039;re thinking of dip, MS-70, and all those harsh solvents that eat away metal. No, acetone only reacts with organic material, so your metal and toning will be 100% safe (unless the &quot;toning&quot; is just a bunch of gunk on a coin).&nbsp; I&#039;ve soaked a few hundred coins in pure acetone and they did not lose a speck of toning.&nbsp; Don&#039;t mix copper and silver in the same acetone mix though, but that&#039;s not relevant to your one coin.</p><p><br /></p><p>Edit: if you still have concerns, I can toss a toned coin into pure acetone and show you some photos from today and tomorrow.&nbsp; Sometimes seeing is believing.[/QUOTE]</p><p><br /></p>

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