2021 Mint Proof Set In Original Case! 7 Coins Inside!. This annual set contained proof versions of 7 different coins within a packaged set. Each of the coins was struck in proof quality at the San Francisco Mint and carried the “S” mint mark. The set included 2021-dated versions of the Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Kennedy Half Dollar, and Native American Dollar. The 2021 Native American Dollar featured a reverse design featuring a portrait of Elizabeth Peratrovich, whose advocacy was considered a deciding factor in the passage of the 1945 Anti-Discrimination Law in the Alaskan territorial legislature. The foreground features a symbol of the Tlingit Raven moiety, of which she was a member. Also included in the set were the latest two releases of the America the Beautiful Quarters Program. This year’s coins featured designs Tuskegee Airmen and Crossing the Delaware.