I have an Intercept Shield folder for my Indian Head cents. They usually cost $35 but I got it for $20 at the flea market. The guy who sold me my 1909-S didn't want to see me put it in a cheap Whitman folder because he wanted my coin to not get damaged, so he practically threw in a really good folder to use. He told me the Intercept Shield folders absorb moisture to protect the coins from humidity (which we have a lot of here in Florida). I'm guessing there's some kind of embedded desiccant inside the walls of the folder, I don't really know, but that's all I can suggest using aside from what madspec already suggested.


















