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<p>[QUOTE=&quot;BadThad, post: 14359286, member: 17261&quot;]I don&#039;t totally disagree with elevation chromatics myself. I do agree it&#039;s bunk to say that&#039;s how all coins will tone. For example, with some coins the toning occurs due to a single leak in it&#039;s container (i.e. a pinhole). It stands to reason that as air enters a hole, the greatest surface exposure and gas level is closest to the hole. That immediate area would receive most of the gas (and adsorb it) and there would be progressively less adsorption as you move away (gas diffuses). Thusly, it would also be expected that the layers progressively decrease in thickness with distance from the source creating a sort of &quot;ramp&quot;. This creates the progressive toning in a pretty predictable way. IMO, this effect is the most pronounced with Morgans.</p><p><br /></p><p>In another tale....</p><p><br /></p><p>I&#039;ve been fortunate to own, hold and inspect many old coin albums/folders/boards in my life as a collector. The differences in toning can be stunning in those 20-50 year-old, untouched albums. It&#039;s possible to have a nearly untoned coin next to one that has wildly toned, next to one that has turned black. So much for sticking to the &quot;chromatics rule&quot;. My experience with these made me toss out any &quot;toning rules&quot; - there are no rules. Again, this all circles right back to my patented statement, a coin is either MA or not MA - the decision solely lies with the buyer.[/QUOTE]</p><p><br /></p>

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