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<p>[QUOTE=&quot;predcarn, post: 148457, member: 6000&quot;]Silver should be the better as any sulfur in the air will combine to give</p><p>a thin film tarnish that would be &quot;tone&quot;. Also since almost all numismatic</p><p>silver coins are not pure, other ions would react also. Some oldtimers</p><p>tell me they use to put less appealing appearing coins in a glass bottle,</p><p>or plastic bag now I guess, with some scraps of newsprint or pulp paper</p><p>behind it. The cheap paper had a high sulfur content and toning was </p><p>fairly quick, especially in the deserts of the SW. I tried this decades ago</p><p>on some cull dimes and found it worked best if the dime was briefly dipped</p><p>or at least the surface dirt washed off. But it was unpredictable as to the</p><p>outcome. They also said to bake the silver coins in a potato, but I never</p><p>tried this <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />&nbsp; A friend of mine tried the coin/paper thing with an overlay of</p><p>a face cutout and we had a nice laugh. Toay he could probably sell it</p><p>on ebay as a religious article <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />&nbsp; I have learned a lot since then and don&#039;t</p><p>have any kind of dip or cleaner around. I am certainly not recommending</p><p>any of the above except as a science type of experiment for fun and NOT</p><p>profit.[/QUOTE]</p><p><br /></p>

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