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<p>[QUOTE=&quot;GDJMSP, post: 25845388, member: 112&quot;]I would ask a question or two and make a couple comments. </p><p><br /></p><p>1 - what makes you think it is verdigris ? I&#039;m asking that because I&#039;ve been sitting here looking at the pics, including blowing them up to 150%, and I can&#039;t see anything that really looks like verdigris. I realize that may be due to the pics, and perhaps you can see things in hand that I can&#039;t see in the pics - like color. If it&#039;s verdigris it should be green and I can&#039;t see anything on either coin that looks green. All the spots look either black or brown to me. So in hand, do they look green to you ?</p><p><br /></p><p>2 - more of a comment than a question really.</p><p><br /></p><p><br /></p><p>There isn&#039;t anything stronger than Verdi-Care that you can use on verdigris. Sure there are harsh chemicals, but all of them will damage the coins far worse than what the corrosion has done. Verdi-Care is the one and only thing that will safely remove verdigris. And even then, there very well may be damage underneath that has already damaged the coins.</p><p><br /></p><p>3 - </p><p><br /></p><p><br /></p><p>There are two things that are needed in order for verdigris to form - moisture and the air. That&#039;s what causes it. And those two things go hand in hand, one is within the other. So if verdigris is already there, they way you prevent it from getting any worse is by placing the coins in a container where you can limit the amount of moisture in the air within the container. There are two ways to do that, use an airtight container, or use a desiccant inside the container. Do either one of these things and the verdigris will not get any worse. It won&#039;t go away, but the coin won&#039;t corrode any more either. So the amount of verdigris will not increase.</p><p><br /></p><p>4 -</p><p><br /></p><p><br /></p><p>Why not ? Verdigris isn&#039;t &quot;contagious&quot;, it simply is. It can&#039;t jump or transfer from one coin to another. Verdigris isn&#039;t the cause of corrosion, verdigris is merely the result of corrosion. The green stuff that you see, well, that&#039;s what copper is turned into as a result of the copper corroding. It literally is no longer copper or metal, it has physically changed into a completely different material. One that happens to be green in color.</p><p><br /></p><p>Now perhaps you already know these things, but your comments make me think perhaps you don&#039;t. And that&#039;s why I posted.[/QUOTE]</p><p><br /></p>

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