Collectible coins are specially minted pieces that hold value beyond their face value, often due to their rarity, historical significance, or artistic design. The United States has produced various collectible coins, including modern commemorative coins. An example is the 50-cent piece issued in 2014, classified as a modern commemorative coin (G50c), which celebrates a significant event or person in American history. These coins often appeal to collectors for their limited mintage and unique designs.