The NCG Certified Proof American Silver Eagle is a premier product in the silver market! As one of the most popular silver bullion products available, Silver Eagles are a great choice for both the avid collector and the investor. The Silver Eagle is a one-ounce bullion coin with a face value of one dollar. The obverse has Adolph A. Weinman’s Liberty Walking Design used on the US half dollar coins from 1916-1947. The reverse design is a rendition of a heraldic eagle by John Mercanti. The series has run from 1986 to present date. Composed of .9993 silver .0007 copper, weighing 31.101 grams, diameter 40.6 mm.