The Washington Quarters-Clad-10 Coin PROOF SET from 1980-S through 1989-S features coins with a mirror finish in DCAM. These uncirculated coins are composed of copper with a fineness of 0.5, struck in proof quality at the San Francisco Mint. The set includes 10 coins of the Washington variety, each denomination being 25 cents. Uncertified and ungraded, these coins are a valuable addition to any US coin collection, showcasing the craftsmanship and history of American currency.