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<p>[QUOTE=&quot;GDJMSP, post: 2705482, member: 112&quot;]It&#039;s been so long I can&#039;t recall for certain which one of you is correct. Thad may have to verify, but if memory serves I think the question stems from a video made by PCGS regarding the sniffer. In that video they show a picture of some of the things that the sniffer will detect. And I&#039;m thinking the picture shows a bottle of Verdi-Gone, the predecessor of Verdi-Care. And I think Thad once said that the sniffer could not detect Verdi-Gone in a thread where that video was discussed because Verdi-Gone would completely evaporate and leave no trace on the coin. But because Verdi-Care leaves behind a protective film I would think that the sniffer could detect it.</p><p><br /></p><p>But like I said, I&#039;m going completely by memory here, so Thad will have to verify.</p><p><br /></p><p><br /></p><p>edit - I would add one thing here. Even if Verdi-Care is detectable that may not be such a bad thing. I say that because leaving verdigris on the coin, when you know with certainty that would be a bad thing, is arguably the greater evil of the two.</p><p><br /></p><p>What it boils down to is a question, and this question applies to all forms of cleaning including dipping a coin, would you prefer to do what you could to protect the coin, or leave it alone and let guaranteed damage proceed unchecked ?[/QUOTE]</p><p><br /></p>

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