Collectible coins, such as the 1878 One Dollar coin from the United States, represent both historical significance and artistic value. The 1878 pattern coins, particularly those featuring the Morgan Dollar design, are notable examples, as they were produced in limited quantities during the transition to the standardized minting of the series. Patterns, in numismatic terms, refer to trial or experimental pieces created to test designs or production methods before a coin is officially issued. Collectors value such items highly due to their rarity and the unique insights they provide into minting practices of the time.

Item Denomination Series Year Mint
1878 P$1 Silver J-1550 $1 (One Dollar) Patterns 1878 Philadelphia