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<p>[QUOTE=&quot;gmarguli, post: 77387, member: 246&quot;]1) I&#039;ve never heard of those two people before. They must have been drinking.&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie7" alt=":p" unselectable="on" unselectable="on" /> </p><p><br /></p><p>2) Put some acetone on a Q-Tip and roll it over the coin. See if it has any affect on the green crud. The Q-Tip will dry extremely fast, so keep it wet. If that doesn&#039;t work, you can do the same thing with MS70 and see if it helps, but on copper MS70 can strip the surface of all the luster, so you need to be very careful. </p><p><br /></p><p>You can also try to loosen the crud with a toothpick. Be very careful. </p><p><br /></p><p>If you&#039;re not comfortable doing the above, let NCS do it. Their costs are very reasonable.[/QUOTE]</p><p><br /></p>

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