Collectible coins often fall into categories such as numismatic coins, bullion coins, and special issue coins. In the United States, dimes are a popular collectible denomination, with the 10-cent coin commonly referred to as a dime. The 2018 Denver mint version of the dime may feature the classic Roosevelt design, struck in various conditions that can influence its collectible value. Rolls of dimes, such as a 10c roll, typically consist of 50 coins totaling $5. Collectors often seek specific years, mint marks, and conditions to enhance their collections.