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<p>[QUOTE=&quot;Amanda Varner, post: 1867579, member: 59002&quot;]This is one area I&#039;ve never been tempted to mess with -- artificial toning.</p><p><br /></p><p>And not to completely threadjack, <i>but&nbsp; </i>...</p><p><br /></p><p>But, I was just reminded of something else ... I attended the ANA&#039;s summer seminar last year, and I was told by one of the instructors there is an &quot;absolutely fool proof 100% definitive&quot; way to tell artificial toning from natural toning, that I hadn&#039;t heard of before.</p><p><br /></p><p>He went on to say that the toning MUST follow the pattern of the mnemonic device of the rainbow &quot;ROYGBIV&quot; (red, orange, yellow, green, blue, indigo, violet).&nbsp; Not that toning must start at one end or the other, but whichever color it starts with it must continue to the right.&nbsp; So ...</p><p>Green--&gt; blue --&gt; indigo = genuine</p><p>green --&gt; yellow --&gt; orange= artificial, or if there are any jumps like yellow --&gt; blue, it&#039;s artificial.</p><p><br /></p><p>This stuck with me because I had never heard of a &quot;100% foolproof&quot; rule to distinguish artificial from genuine toning, and since then I have seen a host of coins that break his rule in slabs, and a ton of coins that follow his rules that are immediately declared to be fakes.&nbsp; </p><p><br /></p><p>Has anyone else heard of this &quot;rule&quot;?[/QUOTE]</p><p><br /></p>

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