Only one left The 2023 Silver American Eagle One Dollar Proof Coin with Box is a highly sought-after collectible item minted by the U.S. Mint. This coin is made of 0.999 fine silver and contains 1 troy ounce of precious metal content. Each coin comes with a Certificate of Authenticity from the U.S. Mint and is packaged in a protective box for safekeeping. The American Eagle design, struck in proof quality, makes it a valuable addition to any numismatic collection.