This lot includes three Certificates of Authenticity (COA) from the United States Mint, accompanying the 1991, 1992, and 1993 Prestige Proof Sets. Each COA verifies the authenticity and weight of the silver coins, which are composed of 0.9 fineness and have a total precious metal content of 1.14 ounces. These sets were struck in proof condition at the US Mint and are considered uncirculated. They were manufactured in the United States and are certified by the US Mint, ensuring their quality and value. This lot is a great addition for collectors who appreciate the history and craftsmanship of American coinage. US Mint Prestige Proof Set 1991 1992 1993. COA’s and boxes included. Please ask any questions Items appearing in pictures is the actual item you will receive.