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<p>[QUOTE=&quot;GDJMSP, post: 3010954, member: 112&quot;]I pretty much agree with just about everything you said Jeff. And your post made me realize I left a critical part of my comments out in my post above - namely that once dipped, the coins need to be stored correctly. If they are, then toning will progress at a slow rate.</p><p><br /></p><p>As for your comments about freshly dipped coins being highly susceptible to toning, that is indeed true. And there is a ton of evidence to prove it. A freshly dipped coin is just as susceptible to toning as a freshly minted coin is - but not more susceptible. And the reason both are susceptible is because the luster is fresh, untoned at that moment in time. Freshly dipped and freshly minted coins are both more susceptible to toning than say a coin that has already been around a few years and already has some toning. That said, once they acquire that initial toning, they are then no more susceptible to toning than the other coin is - assuming storage conditions and environment are the same.</p><p><br /></p><p>This is where people get the idea that initial toning, early toning, light toning, pick your term, protects coins from further toning. But it doesn&#039;t really protect them from it, it merely slows it down from what it was when the coin was fresh. All coins will continue to one as long as air can get to them - no matter what stage of toning they have.</p><p><br /></p><p>This is all true because of the fragile nature of luster, or rather the very peaks of the flow lines that create luster. In other words if you imagine this as being a flow line - /\&nbsp; - the very peak of it tones faster than the edges do further down from the peak. This is because at the peak the metal is only a molecule or two thick so more of it is exposed to the air, but further down it&#039;s much thicker and only the very surface of it is exposed to the air. </p><p><br /></p><p>Think of the peak of the flow line as being like a tiny, very thin bead of metal that is only touched, and thus somewhat protected from the air, at its very bottom edge.</p><p><br /></p><p>Further down the edge of the flow line the metal is surrounded on all sides by other metal with only the very top of it exposed to the air.[/QUOTE]</p><p><br /></p>

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