The 1851 One Dollar Pattern coin from Philadelphia, United States, is an example of a trial or prototype coinage design intended for potential use in circulation. Patterns are collectible due to their rarity and unique designs, often differing significantly from standard issues. The 1851 dollar patterns were part of efforts to explore new designs and denominations, showcasing the artistry and innovation in American coinage during that era. Collectors highly prize these coins for their historical significance and limited mintage.

Item Denomination Series Year Mint
1851 P$1 Restrike, Copper J-132 BN $1 (One Dollar) Patterns 1851 Philadelphia