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<p>[QUOTE=&quot;desertgem, post: 2366868, member: 15199&quot;]Thad is a professional chemist who developed (invented) Verdigone and Verdicare. I did some testing on his products in 2009-10, and found them to be quite useful as to what they accomplished. I sent several resulting coins later to PCGS and NGC and they all slabbed normally. You can search his ID or mine with Verdigone , verdicare as the subject in the search bar above. Jim.</p><p><br /></p><p>So someone doesn&#039;t misunderstand, I have no financial arrangements, etc with the product so it isn&#039;t self-promotion, but he is a nice guy.[/QUOTE]</p><p><br /></p>

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