NGC MS70 Mike Castle Signed. The item "2015 W High Relief American Liberty $100 Gold 1 oz. NGC MS70 Mike Castle Signed" is in sale since Monday, February 8, 2021. This item is in the category "Coins & Paper Money\Bullion\Gold\Coins". The seller is "frit-che" and is located in Ponte Vedra Beach, Florida.This item can be shipped to United States.