Collectible coins encompass a wide range of items, including historical, commemorative, and regular issue coins that have numismatic value. The United States has a rich history of collectible coins, such as the 1 One Dollar series, which includes various designs and mintage years. Counterstamped coins, those that have been altered with a stamp often to commemorate an event or for promotional purposes, can add unique value. Notable examples include certain issues from 1878, a year significant for various coinage, including the Morgan Silver Dollar. These coins often attract collectors due to their rarity and historical significance.