Collectible coins encompass a wide range of numismatic items sought after by enthusiasts and investors. The United States has produced numerous collectible coins, including the Twenty Dollar gold pieces, often referred to as Double Eagles, which feature iconic designs such as the Saint-Gaudens and Liberty variously minted from the 19th century onwards. The Braided Hair cents, minted in 1851, are notable for their intricate design and represent a transitional stage in American currency. Coin condition, rarity, historical significance, and demand are key factors that influence their value in the market.