The 2026 Semiquincentennial Partial Proof Set includes five coins such as the Penny, Dollar, Half Dollar, Dime, and Nickel, all composed of clad material. These coins are struck in proof condition at the San Francisco Mint, marked by the 'S' mint mark. The set features a Half Dime denomination and is uncertified, making it a valuable addition to any coin collection celebrating the United States' 250th anniversary in 2026. Comes with COA and original box.