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<p>[QUOTE=&quot;physics-fan3.14, post: 617501, member: 19165&quot;]I don&#039;t seen anything on that coin which will be affected by acetone. On the other hand, it can&#039;t hurt. I pretty much always give my coins an acetone bath whether I see anything or not, just to remove organics that might be contaminating them. I definitely always rinse silver, and usually copper too (although I don&#039;t get much of that). </p><p><br /></p><p>You just don&#039;t want to rinse aluminum coins in acetone, as the results are not pleasant.[/QUOTE]</p><p><br /></p>

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