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<p>[QUOTE=&quot;lkeigwin, post: 1411879, member: 30400&quot;]As Doug says, acetone is harmless. It reacts with organic material. I&#039;ve soaked coins for weeks in acetone. You don&#039;t need to worry about a quick dip.</p><p><br /></p><p>Below is a 20c piece that was in an old ANACS slab (sorry...old images). I tried crossing it to PCGS but it was declared &quot;questionable color&quot;. I gave it a 10 second acetone bath and you can see the results below. The artificial toning, intentional or otherwise, was instantly removed.</p><p>Lance.</p><p><br /></p><p><img src="http://i244.photobucket.com/albums/gg37/lkeigwin/1875-S20cANACSMS60obv.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="http://i244.photobucket.com/albums/gg37/lkeigwin/1875-S20cANACSMS60rev.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="http://i244.photobucket.com/albums/gg37/lkeigwin/1875-S20cobv.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="http://i244.photobucket.com/albums/gg37/lkeigwin/1875-S20crev.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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