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<p>[QUOTE=&quot;Bacchus, post: 76812, member: 759&quot;]Well, I only had maybe a dozen problem coins out of more than 200, but then the coins have only been in the chest for a year.</p><p><br /></p><p>I didn&#039;t study it, but my recollection is that at least one of the coins had some toning bounded by an arc that suggested it was in contact with another round object (coin).</p><p><br /></p><p>Of course, all the coins are thrown in together.&nbsp; However, when I put the coins back in the chest, I made an effort to insulate the Sacs from the clads with cents, on the pitiful theory that the cents are more similar in finish to the Sacs than the clads.&nbsp; The Sacs seem to be the ones that suffered the most.[/QUOTE]</p><p><br /></p>

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