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Does PCGS tell you if the coin has been cleaned?
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<p>[QUOTE="medoraman, post: 1449733, member: 26302"]More generically, if something is "in" the metal of the coin, and not simply sitting on the surface, it cannot be cleaned without damage. Same with corrosion that dark toning can turn into. Once its in the metal itself, its damage. Dirt, grime, grease, toning, etc all reside on the surface or only affects the very outer molecules of metal.</p><p><br /></p><p>Regarding dipping, if done just once, and correctly, I agree its very hard to tell. However, bad dipping or continued dipping will be noticable. We have all seen "overdipped' coins, coins with good details but simply no luster. The same molecules that give luster are the ones removed with dipping. Every dip lowers luster, no way around it, but a coin properly dipped, and dipped for the right reason, (to stop corrosion for example), is better that a coin left unchecked. </p><p><br /></p><p>Always remember it was the person who allowed the coin to get corroded or overtoned that caused the damage, not the person who dips it trying to help the coin.</p><p><br /></p><p>Now, if someone dips just to make a coin whiter, yeah they should be taken out back and shot. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="medoraman, post: 1449733, member: 26302"]More generically, if something is "in" the metal of the coin, and not simply sitting on the surface, it cannot be cleaned without damage. Same with corrosion that dark toning can turn into. Once its in the metal itself, its damage. Dirt, grime, grease, toning, etc all reside on the surface or only affects the very outer molecules of metal. Regarding dipping, if done just once, and correctly, I agree its very hard to tell. However, bad dipping or continued dipping will be noticable. We have all seen "overdipped' coins, coins with good details but simply no luster. The same molecules that give luster are the ones removed with dipping. Every dip lowers luster, no way around it, but a coin properly dipped, and dipped for the right reason, (to stop corrosion for example), is better that a coin left unchecked. Always remember it was the person who allowed the coin to get corroded or overtoned that caused the damage, not the person who dips it trying to help the coin. Now, if someone dips just to make a coin whiter, yeah they should be taken out back and shot. :)[/QUOTE]
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