Collectible coins encompass a variety of numismatic items, including coins and tokens that hold value for collectors due to their historical significance, rarity, or design. The G50c Token is a specific type, often associated with the Louisiana Purchase Exposition held in 1904, which celebrated the centennial of the Louisiana Purchase. These tokens were used as currency at the expo and can feature unique designs related to the event, appealing to collectors interested in both numismatics and American history.