Collectible coins, particularly from the United States, encompass various types, including patterns, which are experimental designs created to test motifs or compositions for potential new coinage. The 1876 P 20 is a notable example of a pattern coin, specifically a proposed twenty-cent piece, featuring unique designs that were never released for circulation. These patterns are often prized by collectors for their historical significance and rarity, as they represent a glimpse into the evolution of U.S. coinage.

Item Denomination Series Year Mint
1876 P$20 Gold J-1488 P$20 Patterns 1876 Philadelphia