Included in this historic set are four redesigned cents celebrating the bicentennial of Abraham Lincoln's birth, composed of an alloy matching the original 1909 Lincoln cent Ì´ÌÔ 95% copper, 3% zinc and 2% tin. The engravings honor his birthplace, formative years, professional life and presidency. The six D.C. and U.S. territory quarters that were the sequel to the Statehood quarter series are included as well. Another holder features the four yearly Presidential dollars celebrating Presidents William Henry Harrison, John Tyler, James K. Polk and Zachary Taylor. A Jefferson nickel, Roosevelt dime, Kennedy half dollar and Sacagawea dollar celebrating agriculture, round out the largest-ever 18-coin U.S. proof set.