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<p>[QUOTE=&quot;GDJMSP, post: 3071698, member: 112&quot;]The only thing that <u>can be done</u> is to use chemicals to change the appearance of the coin. Water, acetone, xylene, alcohol - none of those have any effect at all on toning. That leaves coin dips of one kind or another. And all coin dips contain an acid of one kind or another, it is the acid that removes the toning. That&#039;s what they would do, if they did anything at all. </p><p><br /></p><p>Ya see, you also have to understand that just because you send a coin in to them for cleaning/conservation - that doesn&#039;t mean they will actually do anything to the coin. Before doing anything, they examine the coin and make their best guess as to whether or not they should just leave it alone. If they think dipping will help it, maybe get an upgrade, then they&#039;ll dip it. Otherwise they&#039;ll just leave it alone. You&#039;ll still have to pay them though.[/QUOTE]</p><p><br /></p>

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