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<p>[QUOTE=&quot;Coinchemistry 2012, post: 2124043, member: 28107&quot;]Against my better judgment, I come back to this thread...</p><p><br /></p><p><br /></p><p><br /></p><p>But it also doesn&#039;t mean that it can be done either.&nbsp; It is a logical fallacy to conclude otherwise.&nbsp; What you and some of the other posters seem to struggle with is the mere fact that you have an opinion, does not necessarily mean that it is accurate and will come to fruition.&nbsp; And since the thread was taking a position that rainbow toned coins should presumably be avoided because of concerns of artificial toning, the burden of proof or onus is on you.&nbsp; I don&#039;t think there is anything unreasonable about asking for some sort of proof when broad pronouncements are made that <i>any pattern of toning</i> can be replicated with great fidelity.</p><p><br /></p><p>And to be clear, I see the logic above in red being used in your toning comments generally, and am not targeting the dipping of copper.&nbsp; I have not and do not intend to reread the last several pages to catch up on the aside.</p><p><br /></p><p><br /></p><p><br /></p><p>We are. To be clear, when a toned coin comes to market, it is not assumed that is natural.&nbsp; Rather, we look to objective indications on the coin itself.</p><p><br /></p><p><br /></p><p><br /></p><p>This is false.&nbsp; PCGS discontinued its color designation guarantee protections, but NGC still guarantees the color of copper for 10 years from the date of encapsulation.</p><p><br /></p><p><br /></p><p><br /></p><p>It is possible that dipping or even something more severe could be at play in some instances.&nbsp; There are many chemical manipulations that can be made to copper.&nbsp; One them is applying cyanide compounds.&nbsp; It will strip the coin at first, but it will reoxidize and tend to have a golden red color about it in time.&nbsp; These do end up in TPG plastic.</p><p><br /></p><p><br /></p><p><br /></p><p>So we at least agree that your reasoning is the same.</p><p><br /></p><p><br /></p><p><br /></p><p>I actually don&#039;t disagree with this part, but there are still clues to look for in the toning.&nbsp; You are not viewing each area of toning in isolation, but reviewing the totality of the evidence. </p><p><br /></p><p><br /></p><p><br /></p><p>There are indicators that indicate that a coin is likely NT and there are indicators that the coin is AT.&nbsp; This is also where market acceptability comes in.&nbsp; The less certain one could theoretically be in regards to a coin, the less market acceptable and less liquid the piece will be.&nbsp;&nbsp; And even accounting for &quot;iffy&quot; pieces, their existence does not say anything about the ability to reproduce blatant NT coins.&nbsp; I have never seen, but would love to see, a coin doctor replicate pull away toning or textile toning for instance.[/QUOTE]</p><p><br /></p>

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