2018 S Silver Eagle From Limited Edition Silver Proof Set Graded NGC PR-70 Limited Quanity. Add a map to your own listings. The item "2018 S NGC PR-70 Limited Edition Set Silver Proof American Eagle PRESALE" is in sale since Wednesday, October 17, 2018. This item is in the category "Coins & Paper Money\Coins\ US\Commemorative\Modern Silver/Clad (1982-Now)".The seller is "dougmash47" and is located in Sarasota, Florida. This item can be shipped to United States, Canada, Japan, Brazil, Australia, Thailand, Hong Kong, Chile, Colombia.