The coin in question is a notable piece from the California Fractional Gold series, which was minted in 1855 at the Philadelphia Mint. This particular coin has a denomination of 50 cents (50¢) and is categorized under "Coins" as its sub-type. Although it lacks detailed specifications such as width, height, and diameter—indicated as 0.00000000—this highlights that its specific measurements may not be provided or preserved. It is important to note that other key properties, including weight and mintage, are also shown as 0, which could imply that this information is either not applicable or unavailable for this specific piece. This coin does not carry a mintmark, suggesting it was produced without additional identifiers. Its material is classified simply as "Other," which may point to the unique nature of California Fractional Gold coins, often made from various alloys to represent fractional gold values during the 19th century gold rush. Although there are no designer specifics noted, it is historically significant to collectors and numismatists for its association with the era of gold discovery in California, which drove the need for smaller denominations. The coin's circulation value is listed as 50 cents, reflecting its historical monetary significance. Overall, this 1855 50¢ California Fractional Gold coin represents a fascinating aspect of U.S. currency history, embodying both the economic conditions of its time and the artistic craftsmanship of minting practices in mid-19th century America.