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<p>[QUOTE=&quot;desertgem, post: 7972645, member: 15199&quot;]Luckily they have changed ( well except the week-end gold diggers) from using cyanide to &quot;bright white&quot; silver/gold coins back in the days when toning was worth less than bright white.</p><p>Coins that were/are put into cyanide or full strength commercial dips get a dull shine and no &quot;wagon wheels&quot;&nbsp; or color as both depend on microscopic ridges to produce both and those ridges if dissolved away can never be replaced chemically.&nbsp; Jim[/QUOTE]</p><p><br /></p>

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