RARE 2021 United States Mint Limited Edition Silver Proof Set 6 coins, Over 2oz Of Silver low mintage. 2021-s US Mint Limited Edition Silver Proof Set with 6 Coins. Contains a total of 2.876 oz of Silver. Includes one of each Type 1 and Type 2 2021 Proof Silver Eagles, both 2021 issues of the Silver Washington Quarter (Washington Crossing the Delaware and Tuskegee), Kennedy 50c and Roosevelt Dime. Kennedy, quarters and dime are 90% silver.