Collectible coins encompass a variety of categories, including historical pieces, commemorative coins, and bullion coins. The United States fifty-cent coins, commonly known as half dollars, have been minted in various designs and metals over the years. California Fractional Gold coins, produced in the mid-19th century, were created to provide smaller denominations of gold currency during the California Gold Rush. The 1855 California Fractional Gold coins, specifically, are notable for their unique designs and historical significance, capturing the economic climate of that era.