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<p>[QUOTE=&quot;Insider, post: 3657140, member: 24314&quot;]Lehigh96, posted: Is toning [<span style="color: #660066">ENVIRONMENTAL DAMAGE</span>] invisible?&nbsp; [<span style="color: #660066">No, no, and heck no!&nbsp; I especially like the BLACK CORROSION on the rims of rainbow 66 on up coins.]</span> Are you saying the a coin with a thin film interface isn&#039;t different than a coin without? [<span style="color: #b300b3">Of course its different and it may be more attractive too</span>] The toning/patina/oxidation absolutely changes the condition of the coin.&nbsp; It doesn&#039;t change the surface preservation [<span style="color: #b300b3">You called it. OF COURSE it changes the surface - oxidation.&nbsp; No longer as original as it left the press</span>] or wear level of the coin, but equating &quot;condition&quot; will only &quot;surface preservation&quot; or &quot;wear level&quot; is where your argument fails.&quot;</p><p><br /></p><p>LOL, just because some folks consider AU coins w/&quot;cabinet friction&quot; to be &quot;Unc enough&quot; (a term I coined to be able to forget my personal grading standards and work at a TPGS) does not indicate failure.&nbsp; It is a fact of &quot;market grading.&quot;&nbsp; </p><p><br /></p><p>As you know, the condition of a coin&#039;s surface is judged by several things including loss of luster (wear).[/QUOTE]</p><p><br /></p>

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