In addition to proof versions of the Lincoln cent, the Roosevelt dime, the Kennedy half dollar, and the Golden Dollar featuring Sacagawea, the 2004 set features the first two new coins in the Westward Journey Nickel Series, honoring the bicentennials of the Louisiana Purchase and the Lewis and Clark expedition.
The set also includes the 2004 states honored in the 50 State Quarters Program
Michigan
Florida
Texas,
Iowa
Wisconsin
With 11 coins in all, this set is the biggest United States Mint Proof Set ever made.