These coins are 90% silver. The set consists of Illinois, Alabama, Maine, Missouri, and Arkansas state Quarters. A Kenedy, a Roosevelt Dime. the last Jeferson nickel, a Lincoln cent, and a Sacagawea dollar. All from the 2003 year of minting. Certificate of Authenticity and original mint box. These coins are produced from carefully selected planchets, or coin blanks that have been burnished to a high luster. The polished blanks, which are carefully handled to minimize scratches and abrasions, are struck on specially adapted coining presses. Each coin is struck at least twice to bring forth the the most minute detail with remarkable clarity.