Collectible coins encompass various types, including patterns, which are trial pieces or prototypes meant to test designs before official minting. In the context of the United States, the P25C refers to specific patterns designed around 1792, a significant year as it marks the establishment of the U.S. Mint. These patterns often feature unique designs and metal compositions, making them highly sought after by collectors for their historical significance and rarity.

Item Denomination Series Year Mint
1792 P25c Copper J-12 BN P25c Patterns 1792 Philadelphia