Collectible coins, particularly in the context of the United States, encompass a variety of types, including patterns, which are specially produced to test designs and compositions before official minting. The 1874 patterns, specifically, refer to a series of trial pieces created by the U.S. Mint, often featuring designs that never went into mass production. The designation "P" indicates a Philadelphia mint origin, and "2 50" typically signifies a two-and-a-half dollar denomination, known as a quarter eagle. These coins are highly sought after by collectors due to their historical significance and rarity.

Item Denomination Series Year Mint
1874 P$2.50 Copper J-1367 BN P$2.50 Patterns 1874 Philadelphia