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<p>[QUOTE=&quot;GDJMSP, post: 2848017, member: 112&quot;]I have no doubt of that. But only coins submitted under the Secure Plus grading tier are run through the sniffer, all other submissions are not. Point being even if the film is on the coin the grader may not detect it by naked eye - thus the clean grade.</p><p><br /></p><p>As for the comments about the film being so thin, or so little of it on the coin, that it is undetectable - well that&#039;s what I don&#039;t know about. Possible ? Yeah, maybe, but also maybe not. I mean those machines can detect very minute quantities - that is what they are made to do. So I have a kind of hard time believing they cannot detect it.</p><p><br /></p><p>Now don&#039;t think I&#039;m badmouthing the product - I most definitely am not. I have recommended Verdi-Care many times for its intended use. And it does what it is supposed to do - safely remove verdigris - quite well. And using the product and removing the verdigris is far and away a better option that leaving it on the coin, in my opinion, even if it does leave a film on the coin. Especially since, as Jim mentions, the film can be safely removed.</p><p><br /></p><p>My only point in all this is whether this film is detectable or not. Logic seems to tell me it would be. But hey, you two guys are the scientists, why don&#039;t ya try it and find out. Somebody around you should have a mass-spec , or whatever kinda machine you&#039;d need, don&#039;t they ?[/QUOTE]</p><p><br /></p>

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