Collectible coins refer to numismatic items that are valued for their rarity, historical significance, condition, and demand among collectors. In the United States, the five-cent nickel includes the Jefferson Nickel, which was first issued in 1938 and features a portrait of Thomas Jefferson. The 1955 Jefferson Nickel, minted in Denver, is notable among collectors, particularly due to its potential for errors and variations, such as the infamous "D over S" mintmark variety. The Half Dime, a term used for five-cent coins prior to the introduction of the nickel in 1866, is also a collectible item, representing early U.S. coinage.

Item Denomination Series Year Mint
1955-D (Denver) Jefferson Nickels 5¢ (Five Cents, Nickel, Half Dime) Jefferson Nickels 1955 Denver