Collectible coins encompass a wide range of numismatic items, including historical coins, commemorative issues, and bullion coins. The United States One Dollar coin has various types, including Gold Dollars, which were minted from 1849 to 1889. The 1888 Gold Dollar, struck in Philadelphia, is notable for its design and historical significance. These coins typically attract collectors due to their rarity, condition, and the historical context of their mintage.