Collectible coins encompass a wide range of numismatic items that are valued for their historical significance, rarity, and aesthetic appeal. In the context of the United States, the two and a half dollar denomination, also known as the quarter eagle, features designs that have varied throughout its history. The 1831 pattern trial coins represent experimental designs intended for potential circulation, often crafted in limited quantities to evaluate public and governmental response. These patterns are highly sought after by collectors due to their unique attributes and the insight they provide into the evolution of U.S. coinage.

Item Denomination Series Year Mint
United States of America 1831 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1831 Philadelphia