This coin is a remarkable example from the "Colorado Gold" series, minted in 1861 at the Philadelphia Mint. It has a denomination of $2.50 and is classified as a Proof coin, which signifies that it was produced with a higher level of detail and finish than standard minting processes. Although it carries the characteristic properties of Copper material, it is essential to note that the precise measurements, including width, height, diameter, and weight, are listed as zero. This could indicate a unique or possibly ungraded status, as these dimensions are generally crucial for determining the physical attributes of a coin. Unique to this piece is the absence of a mint mark, suggesting it was struck at the Philadelphia Mint—the primary mint facility during that era. With a mintage recorded as zero, this coin may be exceedingly rare or potentially non-existent in circulation. Collectively, these traits contribute to its allure among numismatists and collectors. Overall, the 1861 $2.50 Colorado Gold Proof coin stands out as a distinctive collectible, representing a specific era in American coinage while evoking the rich history associated with both its theme and minting origin. Its rarity, combined with its historical significance, likely positions it as a valuable piece within the numismatic community.
| Country | United States of America |
| Year | 1861 |
| Serie | Colorado Gold |
| Denomination | $2.50 (Two and a Half Dollars) |
| Mint | Philadelphia |