Collectible coins encompass various types, including those that hold significant historical and monetary value. In the context of the United States, the Two and a Half Dollars, often referred to as "quarter eagles," were minted to represent a value of 2.5 dollars. The 1861 Trial Coins, produced in Philadelphia, are a distinct category known as patterns, which are experimental pieces created to test designs and formats before regular production. These trial coins are highly sought after by collectors due to their rarity and the unique insights they offer into the coinage of that era.

Item Denomination Series Year Mint
United States of America 1861 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1861 Philadelphia
United States of America 1861 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1861 Philadelphia