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<p>[QUOTE=&quot;Just Carl, post: 800337, member: 4552&quot;]Don&#039;t let them all full you. There are many things you could do with that coin. </p><p>As long as it is Copper, you could try to find a Lead-Acid car battery and remove some of the Acid. It is a weak Sulfuric Acid. Difficult to find lately since so many auto batteries are now sealed. Take that liquid and place in a clean glass container and add your Copper coin. Depending on how long you leave them there, the entire outer service will be disolved and the coin will now look new and reallllly clean except a massive loss of details. If you do it long enough, eventually the entire coin will be gone and no more problems on how to clean one.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /> </p><p>And added note is if you allow the remaining blue solution to evaporate, you&#039;ll usually get a really nice Blue toned crystal. :goofer:</p><p>All kidding aside, if you don&#039;t know how to clean a coin, and no one really does, just follow this rule. <b><i><u>DON&#039;T CLEAN COINS. </u></i></b>[/QUOTE]</p><p><br /></p>

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