Coins are collectible items that can vary significantly in type, often categorized by their material, age, and historical significance. In the United States, collectible coins include various denominations and series, with particular interest in unique types such as patterns, which are experimental coin designs created before regular production. The DT 20 is a specific pattern coin from 1850, representing a notable period in U.S. numismatic history, reflecting both artistic and minting developments of that era. Collectors seek such coins for their rarity, aesthetic appeal, and historical context.

Item Denomination Series Year Mint
(1850) DT$20 Silver J-126 DT$20 Patterns 1850 Philadelphia