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<p>[QUOTE=&quot;medoraman, post: 8395031, member: 26302&quot;]True silver toning comes from intact surfaces of the silver that melted when struck. Some ancients that were buried fairly quickly can retone, no doubt. However, most cannot since they might have circulated too long, needed to be cleaned more vigorously, that layer was corroded over time and removed, etc. If you learn about how coins tone, and the importance of surfaces, its pretty easy to spot if an ancient silver was toned naturally or artificially.</p><p><br /></p><p>Now, toning to me in ancients that is exciting is toned copper. Hard green patina, or much rarer, a blue patina is simply gorgeous. That is a different chemical reaction than silver toning though.[/QUOTE]</p><p><br /></p>

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