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<p>[QUOTE=&quot;Kentucky, post: 2837309, member: 33176&quot;]Expert???&nbsp; Expert!!! <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /> Thanks for the laugh.&nbsp; If the coin you are talking about is whitish, it could possibly be one of the zinc coins.&nbsp; Zinc coins are extremely hard to do anything with in my experience.&nbsp; the Coca Cola soak is sometimes successful due to the presence of phosphoric acid in the drink and also to carbonic acid in the carbonated water.&nbsp; Phosphoric acid is also found in Naval Jelly (if you know what that is).&nbsp; If the coin is pretty well gone, nothing much can hurt it.&nbsp; Try boiling water, try soap and water, see if they do some good...BTW a good scrub brush for coins can be made by cutting the bristles of a toothbrush to half length so they are stiffer.[/QUOTE]</p><p><br /></p>

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