Collectible coins, often referred to as numismatic items, encompass a variety of types including circulation coins, commemorative coins, and patterns. Patterns are experimental coins made to test designs or compositions before mass production, and they often feature variations that never entered circulation. The United States has a rich history of pattern coins, with notable examples emerging in different eras, including those minted in 1759, which reflect the evolving artistry and technological advancements of the time. Collectors value these items based on rarity, historical significance, and condition.