Collectible coins in the United States encompass a wide range of types, including various denominations like the nickel, which is worth 5 cents. Nickels, often featuring designs such as Thomas Jefferson on the obverse and Monticello on the reverse, have been produced since 1866. A 5c roll typically contains 40 nickel coins, offering collectors both complete sets for specific years and unique varieties, such as the buffalo nickel or the war nickel. High-quality examples, rare dates, or certain mint marks can significantly increase the value of collectible nickels.