The American Innovation Dollar series was introduced in 2018 to honor the innovations and inventors from each U.S. state and territory. The 2021 coins feature designs that celebrate various innovations, representing states such as Virginia, New York, and others. The San Francisco Mint produced a special proof version of the American Innovation Dollars, known for its high-quality finish and intricate design details, making it highly sought-after by collectors. The one-dollar denomination serves as a commemorative piece reflecting American ingenuity and creativity.