The 2021-S Innovation Dollar Reverse Proof Set features all four of the new American Innovation Dollar Coins for 2021. These sets include four beautiful reverse proof coins with sharp relief and a mirror-like background with frosted foregrounds, giving them a special cameo effect. These sets feature coins from New Hampshire, Virginia, North Carolina and New York. Comes complete with the U.S. Mint box and certificate of authenticity. Limited edition sets with a mintage of only 50,000.