Collectible coins are often categorized based on various factors such as historical significance, rarity, and condition. The United States has produced numerous collectible coins, including the Ten Dollar Gold pieces and the Coronet Head Cents. The Coronet Head Cent was minted from 1816 to 1857, with the 1825 version being struck at the Philadelphia Mint. These coins are sought after by numismatists for their design and historical context.