One oz 1991-S mark America Silver Eagle Proof Coin with COA and Box
- 1 Oz
- Issuing Mint:
- US Mint
- Very Beautiful Coin..!
Proof Mintage: 511,924
1991 Silver Eagle Proof Specifications:
Mint Mark: S (proof)
Designers: Adolph A. Weinman (obverse), John Mercanti (reverse)
Composition: 99.93% silver, 0.07% copper
Weight: 31.101 grams (1.000 ounces)
Diameter: 40.6 mm (1.598 inches)
Thickness: 2.98 mm (0.117 inches)
"The term "proof" refers to a specialized minting process that begins by manually feeding burnished coin blanks into presses fitted with special dies," the U.S. Mint states on its Web site. "Each coin is struck multiple times so the softly frosted, yet detailed images seem to float above a mirror-like field."