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<p>[QUOTE=&quot;satootoko, post: 73316, member: 669&quot;]No way!&nbsp; It might not hurt them, but it absolutely will not help.That&#039;s one of the reasons acetone has to be used in a well ventilated area.&nbsp; An acetone rinse is generally considered &quot;conservation&quot;, not &quot;cleaning&quot; and is really the only solution for two specific evils - PVC gunk and adhesives.</p><p><br /></p><p>Be sure to use the pure stuff obtained from a paint, hardware or home improvement store or a pharmacy/chemical supply house.&nbsp; The acetone sold as nail polish remover generally has additives (including &quot;stink pretty&quot; stuff) which could possibly affect the coin&#039;s metal surface.&nbsp; After a short acetone bath the coins need to be rinsed in de-ionized water and allowed to air dry on a soft cloth.&nbsp; Never wipe them with anything, including fingers.If you want to totally destroy their numismatic value and prevent them from ever acquiring any more, there are many chemical treatments and/or metal polishes that can <u>change</u> the color to a red or red-brown coppery tone, but they all involve artificially damaging the surface.&nbsp; Actually, they&#039;re your coins, so feel free to experiment, but <img src="http://www.cosgan.de/smiliegenerator/ablage/114/6.png" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> don&#039;t do anything rash until you&#039;ve made sure that the coin(s) you are working on are the ones worth 1.5-2¢, not prize pieces.[/QUOTE]</p><p><br /></p>

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