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<p>[QUOTE=&quot;Paul M., post: 2080465, member: 73165&quot;]If you&#039;re going to use a q-tip, I&#039;d advise not swabbing (i.e. rubbing), but rolling the q-tip over the surface, and try not to roll the same portion of the q-tip over the coin twice.&nbsp; (That is, 1 revolution of the tip at most.)</p><p><br /></p><p>I used to work at a company that made and used world-class optical equipment, and this method is how we&#039;d clean lenses (although we used isopropyl alcohol instead of acetone).&nbsp; It helps prevent dragging crud over the surface of the coin, reducing the possibility of hairlines.</p><p><br /></p><p>That said, PVC can really eat into a coin, so you might have to resort to swabbing if multiple soaks and gentle q-tipping don&#039;t work.[/QUOTE]</p><p><br /></p>

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