Collectible coins, specifically dimes from the United States, include those minted in Denver in 1953. The 10 cent coins are part of the Roosevelt dime series, which was introduced in 1946 to honor President Franklin D. Roosevelt. Collectors often seek these coins in various conditions, with uncirculated and proof examples commanding higher premiums. The Denver mint mark on the coin signifies its production location, which can influence its value and collectibility among enthusiasts.