Patterns, also known as die trials, are experimental coins struck to test new designs or technology before official production. In the United States, these coins often feature unique or altered designs and were typically produced in limited quantities. The 1860 patterns from the U.S. Mint are of particular interest to collectors as they represent attempts to innovate and improve currency. These coins are highly sought after in the numismatic community due to their rarity and historical significance.

Item Denomination Series Year Mint
1860 DT$2 1/2 Clark Gruber Copper Die Trial DT$2 1/2 Patterns & Die Trials 1860 Denver, Colorado