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<p>[QUOTE=&quot;desertgem, post: 744454, member: 15199&quot;]I think it has already been dipped and then put into a 2x2 with cardboard dust, that got on the the coin and served as a focal point for verdigris development. Notice how each spot has a &quot;center&quot; where a speck in somewhat visible. When a coin is dipped ( probably toned dark or splotchy) even for a few seconds, original patina can be removed which makes the copper very reactive, much more than before the dip, so if not protected, and if the environmental conditions are poor, this will occur. The chances of preserving this coin is low. So it wouldn&#039;t be an option for purchase. If it was one inherited or turned bad under my care, I would rinse in acetone first, and then try Verdigone to reduce the scope of the damage, to where it would be acceptable for me to keep. Neither treatment should harm the coin , done properly. IMO.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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