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<p>[QUOTE=&quot;John Anthony, post: 1640774, member: 42773&quot;]NT can happen in a lot of different ways: from the metal in the coin interacting with chemical compounds in paper rolls, albums, envelopes, etc. So there are a lot of different patterns and indicators. AT can be accomplished in a variety of ways as well: chemical treatments, electroplating, heat, etc.</p><p><br /></p><p>I agree with you on the legitimacy of NT as opposed to AT. Artificially toned coins are basically coin &quot;art&quot;, and some people like to collect them, just as some people collect coin jewelry and all sorts of weird exonumia. Personally, I don&#039;t care for any of it, but that&#039;s just my preference.[/QUOTE]</p><p><br /></p>

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