The DT 10, or Die Trial pattern coin from 1860, represents an experimental stage in U.S. coinage. These coins were struck to test designs, compositions, or production methods before full-scale production. Patterns like the DT 10 are highly sought after by collectors due to their rarity and historical significance, often reflecting changes in design or metal content in American coins. The 1860 patterns are particularly notable for their role in the evolution of U.S. coinage during a transformative period in American history.

Item Denomination Series Year Mint
1860 DT$10 Clark Gruber Copper Die Trial DT$10 Patterns & Die Trials 1860 Denver, Colorado