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<p>[QUOTE=&quot;GDJMSP, post: 1888228, member: 112&quot;]TaborTot - </p><p><br /></p><p>Simply put the coins are covered with corrosion. And as Jim said, while you can get it off by using an acid or alkali , there is no getting it off without harming the coins. Of course the coins have already been harmed by the effects of the corrosion. And if the corrosion is not removed they will be harmed even more. So it&#039;s a sixes proposition - no matter what you do, more harm will be done.</p><p><br /></p><p>But let&#039;s say you do use an acid to remove the corrosion. Once that is done what you are going to see is a coin with its surface partially eaten away and covered with pits and bumps. That is given. And any part of the coin that did not have active corrosion on it will also be partially eaten away by the acid used to remove the corrosion. But even to do that much you will probably have to experiment some before you find the product that will work. And each experiment you do will eat away more of the coin.</p><p><br /></p><p>In my opinion, when presented with this situation, it&#039;s not even worth the effort of trying. But that&#039;s me, the opinions of others may vary.[/QUOTE]</p><p><br /></p>

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