2016 marks an important year for U.S. coinage. Three classic American coins – the Mercury Dime, the Standing Liberty Quarter, and the Walking Liberty Half Dollar – were created as part of the U.S. Mint’s shift to modern coin designs in the early 20th century. In 2016, these popular coins are celebrating their 100th anniversary! To honor this tremendous achievement, the U.S. Mint has created commemorative versions of each of these coins, struck in .9999 fine (24-karat) gold.