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<p>[QUOTE=&quot;-jeffB, post: 24683905, member: 27832&quot;]I would assume that &quot;stained&quot; refers to a foreign substance adhered or adsorbed onto the coin. &quot;Toned&quot; refers to a layer of oxide or sulfide produced by a chemical reaction with the coin&#039;s surface. I&#039;m not sure how sharp that dividing line really is, though.[/QUOTE]</p><p><br /></p>

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