2003, 2004 and 2005 Proof Set Trio. In 2003, the 10-coin proof set included the year's regular issues as well as five commemorative state quarters. The big 2004 and 2005 U.S. proof sets were the largest to that date. Both include five Statehood quarters as well as two Westward Journey Jefferson nickel designs. Seven of the coins in each set boast one-year-only designs. Housed in two holders, all three sets feature proof coins of the Sacagawea dollar, Kennedy half dollar, Statehood quarters, Roosevelt dime, Jefferson nickels and Lincoln penny. Each finest-quality proof features deep-struck crisp engravings with elegant frosted effects and is housed in a sturdy transparent case.