The coin in question is a 1853 California Fractional Gold piece, specifically valued at 50 cents (50¢). This particular series was created during the California Gold Rush and represents the fractional currency needs of the era. The coin was issued in the United States of America and is categorized under the type "Coins". It is noteworthy that this coin does not have a mint mark, indicating that its minting origin is unspecified or unassigned. The properties related to physical dimensions, such as width, height, diameter, and weight, are not provided, suggesting that the details might not be available. As a piece of fractional currency, its material is classified as "Other," which is typical for many California Fractional Gold coins due to their varied compositions. The mintage for this specific coin type is recorded as zero, which can imply that either it is a unique piece or its production details are not documented, making its rarity potentially significant. Overall, this 1853 50¢ California Fractional Gold coin holds historical importance and collectible value, particularly for numismatists interested in the era of the Gold Rush in the United States.