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<p>[QUOTE=&quot;GDJMSP, post: 3218154, member: 112&quot;]Sure can, we see it all the time. It would be the Red or even Red Brown designations given to copper coins. But for them there is no special test they have to pass because the qualification is measurable by eye - 95% or more Red, the coin qualifies for Red. Less than than it doesn&#039;t. And for Red Brown, 5% or more has to be Red, less than that and it doesn&#039;t qualify. And both of those designations can change, literally go away, if the coin continues to tone - even if it&#039;s already slabbed.</p><p><br /></p><p>I don&#039;t know of any other special designation that actually utilizes a physically measurable test for the coin to qualify for that designation. PL is the only one. That&#039;s what makes it so special. </p><p><br /></p><p>I think I maybe need to clarify something here. Above you used the term lightly toned. Now to different people that term &quot;lightly&quot; is going to mean different things. Take the example you used in the beginning of this thread - </p><p><br /></p><p><img src="https://www.cointalk.com/attachments/corona-jpg.836210/" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p>To me, that coin is no where near being lightly toned, it is rather heavily toned. I mean the entire coin, both sides, are toned. Granted the rev is a a lighter toning than the obv, but the entire side is still toned. And I doubt that even any part of the rev would meet the reflectivity requirements. </p><p><br /></p><p>However, if a coin were what I would call lightly toned, and the majority of the coin would still meet and pass the reflectivity requirements, even if small parts of it did not, then that coin would be worthy of the PL designation. And I believe the TPGs see it that way too. In fact I&#039;ve never heard of anybody who didn&#039;t see it that way. But, if the coin continues to tone, to the point that the majority of it no longer passes the test, then it is no longer PL. </p><p><br /></p><p>Same exact way it happens with the Red designation. Would you say copper coins should continue to be designated as Red even they are obviously no longer Red ? </p><p><br /></p><p>Ya see, this is what I&#039;ve been saying all along. It is the reflectivity test itself that defines if a coin is PL or not. Without that test, there is no such thing as PL - as the designation was originally defined.</p><p><br /></p><p>Even way back then people saw coins that they just knew were special, coins that were worthy of a Special Designation. And to determine which ones were and which ones were not worthy of it - they came up with that test. Those that passed, got the designation, those didn&#039;t pass, for whatever reason, did not get the designation.[/QUOTE]</p><p><br /></p>

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