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<p>[QUOTE=&quot;GDJMSP, post: 20864813, member: 112&quot;]In this manner - </p><p><br /></p><p><br /></p><p><br /></p><p>Ya see Charley, there&#039;s apparently more than a few things that you&#039;re not aware of. For example, Thad and I have known each other for many years, since long before he invented Verdi-Care. And Thad is very well aware that I have a great deal of respect of respect for him and his knowledge as a scientist.</p><p><br /></p><p>As a result of my respect for Thad I am way more than willing to defer to him and his knowledge of verdigris. But at the same time I have more than a little bit of experience with it myself. Which is precisely why I asked my question in my first post in this thread. That was the purpose of having the discussion.</p><p><br /></p><p>My experience has been that verdigris can be left on a coin for decades, and as long as moisture is minimized and dealt with, that verdigris does not grow or increase in amount. (Which is, in a way, what Thad is saying in his quote above.) Because verdigris itself is not the cause of corrosion but rather the result of it. In other words, the corrosion caused by moisture comes first, occurs first. Then and only then does verdigris form. </p><p><br /></p><p>What I was not aware of is this - </p><p><br /></p><p><br /></p><p><br /></p><p>What this discussion has revealed to me, and hopefully everybody else, is that verdigris is kind of like toning in one regard. Namely that it never stops, cannot be stopped. But it can be slowed down to the point that it&#039;s virtually unnoticeable over the course of a collector&#039;s lifetime. </p><p><br /></p><p>As for the TPGs, they have stated since their inception that they will not slab and give a clean grade to any coin that has active corrosion on it. But yet they have slabbed and given clean grades to millions of coins with verdigris on them. In other words the TPGs were of the same opinion I was when it comes to verdigris, that it is not active corrosion. So rather obviously I was not alone in my opinion.</p><p><br /></p><p>Thad has shown me that I was wrong in my opinion about verdigris being inactive, but somehow I rather doubt that the TPGs will listen to him as I did.[/QUOTE]</p><p><br /></p>

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