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<p>[QUOTE=&quot;GDJMSP, post: 2189, member: 112&quot;]ghostman - </p><p><br /></p><p>What rnealw was talking about is this. Sometimes if you heat up a clad coin - it will form a bubble on the surface of the coin. This is because the heat can cause the layers of the metal to separate and the outer layer will rise up just like a blister. </p><p><br /></p><p>Many times this happens as the result of a high school chemistry class or some kid just playing with coins. Sometimes it is the result of some huckster trying to make a fake error coin in the hopes that they can fool some collector into buying it. Such coins will not show evidence of melting.</p><p><br /></p><p>If you can share a pic of the coin with us - I would be glad to offer my opinion about it. But I am reasonably certain it will be one of the explanations I have listed above. The minting process does not produce coins like you have described.[/QUOTE]</p><p><br /></p>

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