Collectible coins, particularly patterns, are numismatic items struck in limited quantities to test design concepts or coinage techniques before widespread production. The term "P3C" refers to a specific classification within pattern coins, typically denoting coins that were struck in the United States, with some relating to notable years, such as 1881. These coins often showcase unique designs that differ from regular issue coins and are highly sought after by collectors due to their rarity and historical significance.

Item Denomination Series Year Mint
1881 P3c Nickel J-1668 P3c Patterns 1881 Philadelphia