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<p>[QUOTE=&quot;WingedLiberty, post: 1273311, member: 26030&quot;]leo, I am not sure what would cause toning to rub off, but i am guessing it&#039;s not true toning as that bonds to the metal.&nbsp; So it must be some sort of surface deposit.&nbsp; The thought it could be from tobacco smoke, as was posted above, could be worth investigating. </p><p><br /></p><p>By the way, I cringed when i read you were rubbing or touching the coins surface with your finger.&nbsp; Many a coin has been ruined, or at least it&#039;s value significantly dropped, by a fingerprint.&nbsp; Human skin has a lot of oils and acids that will eat away at coins over time, so I wouldn&#039;t make a habit of that practice.[/QUOTE]</p><p><br /></p>

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