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<p>[QUOTE=&quot;daveydempsey, post: 524680, member: 22&quot;]In the coin world tarnish is called toning.</p><p><br /></p><p>In the US silver coins with rainbow toning fetch a premium.</p><p><br /></p><p>US 90% silver coins like the 19th century Morgan Dollar used to naturally tone because of their copper alloy and the fact that they were wrapped in sulfur / sulphur infused brown paper rolls.</p><p><br /></p><p>The premium on rainbow toning has resulted in many US sellers/ dealers, faking the toning by using eggs, banana skin inside brown paper bags, placing coins inside potato&#039;s and baking them.</p><p>Placing coins in sealed containers along with matches.</p><p>This is called AT (Artificial Toning)</p><p><br /></p><p>Some US sellers get carried away and advertise them as &quot;Monster Toned&quot;</p><p>Its all baloney in my eyes.</p><p><br /></p><p>In the UK, Victorian 92.5% (Sterling ) silver coins did not achieve the same amount of natural toning because of the conditions they were stored in and some variations in alloys.</p><p><br /></p><p>Hardly anyone if anyone at all fakes tarnish / toning on coins in the UK because&nbsp; collectors over here and probably the rest of the world don&#039;t give a rats ass about it.</p><p><br /></p><p>I know of two other ways of tarnishing silver coins and any other silver for that matter.</p><p><br /></p><p>#1 is burying the item in yellow sulphur powder, an hour will turn the coin, the longer it is left the darker it goes. </p><p><br /></p><p>#2 Is paint the item with &quot;Gun Blue&quot; and rinse off after a few hours.[/QUOTE]</p><p><br /></p>

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