The coin in question is a unique piece from the United States, specifically categorized under the "Patterns & Trial Coins" series. Its year of origin is 1857, marking it as a product of the Philadelphia Mint, denoted by the 'P' mint mark. This coin falls under the denomination category labeled "Other / Varied," indicating that it may not correspond directly to traditional coin denominations such as cents or dollars. It is classified as a proof coin, which suggests that it was struck with specially prepared dies to produce a coin with a highly polished finish, often intended for collectors or as presentation pieces. Notably, all physical dimensions—width, height, diameter, and weight—are listed as zero, which may imply that this coin is a conceptual or trial piece without standardized measurements in circulation. Furthermore, the mintage is indicated as zero, which signifies that no coins of this type were officially produced for circulation. This rarity can significantly enhance its collectibility among numismatists and coin enthusiasts. Given its characteristics, including its historical context, minting details, and unique classification, this 1857 pattern coin represents a fascinating topic for collectors, showcasing the experimentation and design processes of the U.S. Mint in that era. Its status as a proof and association with a notable year enhances its intrigue and potential value in the numismatic market.
| Country | United States of America |
| Year | 1857 |
| Serie | Patterns & Trial Coins |
| Denomination | Other / Varied |
| Mint | Philadelphia |