Collectible coins include various types, such as the Jefferson Nickel, which has been produced by the United States Mint since 1938. The 5-Cent Nickel is made primarily of a nickel-copper alloy and features a depiction of Thomas Jefferson on the obverse. The Half Dime, although produced in earlier centuries, refers to coins worth five cents before the nickel became standard. Coins minted in Denver can be identified by a "D" mintmark, and specific years, such as the 1991 Jefferson Nickel, may have varying levels of collector interest based on mintage and condition.

Item Denomination Series Year Mint
1991-D (Denver) Jefferson Nickels 5¢ (Five Cents, Nickel, Half Dime) Jefferson Nickels 1991 Denver