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<p>[QUOTE=&quot;-jeffB, post: 24489031, member: 27832&quot;]I&#039;m not privy to the internal stuff for Sigmas, but I&#039;d think that gold would be a little more sensitive to coin shape and design than .999 silver is.</p><p><br /></p><p>I don&#039;t know how they&#039;d come up with a single setting to verify &quot;90% gold&quot;; it seems like electrical and magnetic properties would depend a whole lot on what that other 10% is. But I could be completely wrong.[/QUOTE]</p><p><br /></p>

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