As stated above none of the slabs are full proof. I've had PCGS go just like NGC and ANACS. Now every slab goes into a 3x4 Ziplock with the top zip cut off and folded over and then inserted upside down into another 3x4 Ziplock with zip left on. Never had a coin get any kind of corrosion or toning doing it that way.
Just my opinion.
edgman




Just my opinion.
edgman



















