lets hear it. i am not talking about conservation or removal but prevention so it never occurs. lets hear it.
Sorry in case my post seems offensive, dont intend to.. however when i saw that word "verdigiris" i thought u r making up a word especially the last part "giri" by mixing english and maybe an indian language... then googled it and saw it has something to do with the eagle?maybe? http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4GGLJ_enIN294IN294&q=verdigiris+
I also have my BU rolls of older copper coin in a safety deposit box that is an controlled environment that really help here in the south were the humidity is very bad!
Bottom line: Eliminate as much of the surrounding environment as possible. That means placing the item in a relatively air tight capsule, then in a relatively controlled environment (stable & moderate temp., low RH).
no wisdom from the ages this time GD sigh i was hoping you would dive deep. Unfortunately it does not work have seen many curators and even they are at a loss to explain the hidden element/factor/etc i beleive and this is just a thoery that if you have verdigris anywhere in the vicinity like shades furniture antiques etc then it jumps has to be the only logical explaination also have seen verdigris on quarternary alloy, steel, copper nickel it truly isw fascinating even if its destructive. i wonder if i will see it on gold and platinum the last 2 bastions . there has to be a verdigris field effect of some sort otherwise i ama t a loss on how verdigirs can develop when people have spent thousands on their prevention
With my uncirculated coins I put them in a shoe box with some of those silica gel packets. I don't know if this helps prevent virdigris or not.
why's that? Does the cardboard allow more moisture or some thing. What about a tin cointainer? Thanks for the advice
The cardboard is loaded with sulphur - very bad. Tin is no good because it holds moisture and it rusts. Tupperware or similar - trust me.