Collectible coins, particularly from the United States, encompass a wide variety of types, including patterns, which are experimental pieces created to test designs before official minting. One significant example is the 1839 Philadelphia One Dollar coin, notable for its rarity and historical importance. This coin, along with others from the era, is sought after by collectors for its aesthetic appeal and the insight it provides into the numismatic trends of its time. Patterns like the 1839 One Dollar showcase the evolution of coinage design and are often considered highly valuable due to their limited production and unique characteristics.

Item Denomination Series Year Mint
1839 PS$1 Gobrecht, Restrike, Silver J-104 $1 (One Dollar) Patterns 1839 Philadelphia