In numismatics, collectible coins such as patterns and trial coins are specialized pieces made to test designs, metal compositions, or manufacturing processes. The United States produced various patterns and trial coins throughout its history, including those from the year 1815. The 25-cent quarter, representing twenty-five cents, is a popular collectible denomination, often sought after by enthusiasts for its historical significance and design variety. Patterns from this era may not have entered circulation and are typically considered rare and valuable in mint condition.

Item Denomination Series Year Mint
United States of America 1815 N/A Patterns & Trial Coins 25¢ 25¢ (Twenty Five Cents, Quarter) Patterns & Trial Coins 1815 N/A