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<p>[QUOTE=&quot;Blasty, post: 8194681, member: 38375&quot;]Nice find!</p><p><br /></p><p>The first rule is do not clean coins. This is a catch-all answer to prevent costly mistakes as some people think cleaning involves a buffing wheel <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" /> However, there are safe ways to carefully <i>conserve</i> a coin with contamination on its surface.</p><p><br /></p><p>There have been a lot of threads lately about using acetone, I&#039;d recommend finding those and reading up on it. Acetone works well for many organic compounds, tape residue, etc. and will not harm silver coins. If the spot is toning (oxidation of the metal), acetone will not remove it.</p><p><br /></p><p>You can pick up a big jug from any hardware store. Do not use nail polish remover as it often has other things added.</p><p><br /></p><p>See if the spot comes off just by soaking and a bit of agitation in the acetone. Some gentle persuasion with a cotton q-tip is sometimes needed. Do not use an acid brush, which will leave hairlines... I learned that the hard way, fortunately not on a valuable piece.</p><p><br /></p><p>Anything more involved than this carries some risk of harming the coin, better to ask for further opinions/assistance if acetone doesn&#039;t do the trick.[/QUOTE]</p><p><br /></p>

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