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<p>[QUOTE=&quot;Ordinary Fool, post: 2790189, member: 85318&quot;]If the Sigma says it is silver, it is most likely either plated or silver vermeil. Vermeil is a nice word for gilding over some other metal, in this case a cupronickel obverse and reverse clad to a copper center.</p><p><br /></p><p>To test if it is silver vermeil (ver may) or plating, try a good vigorous rub with an abrasive polishing cloth which will remove either to reveal the cupronickel under it.</p><p><br /></p><p>Do a small area on the rim and test with Sigma again.</p><p><br /></p><p>You could also drop test it on a nice hard surface with another 90% silver coin. I&#039;m sure you&#039;ll hear the difference.</p><p><br /></p><p>Without seeing it in hand and looking at it all over, it appears to have been gilded more than plated.</p><p><br /></p><p>There are still some crazy folks that do gilding even without a respirator plumbed to medical oxygen. They generally don&#039;t live long.[/QUOTE]</p><p><br /></p>

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