This coin is a 50-cent piece from the California Fractional Gold series, minted in 1852. It was produced at the Philadelphia mint, which played a significant role in the minting of various American coins throughout history. The coin is notable for its unique historical context, as California Fractional Gold coins were created during the California Gold Rush to provide smaller denominations that were in demand for everyday transactions. Despite the detailed properties noted, such as its mint mark being "None" and "N/A" for the designer and edge type, these attributes do not diminish the coin's historical significance or place in numismatic collections. The term "Other" for material reflects that these coins were often made using gold, silver, or a combination of metals not typically classified in standard categories. Though specific measurements for width, height, diameter, and weight are marked as zero, it is understood that fractional gold coins of this era typically feature a standard size and weight associated with their denomination. This particular piece stands as a fascinating artifact of American history, representing late 19th-century currency innovations amid the backdrop of immense economic change during the Gold Rush. Given its mintage value of "0", it may indicate this piece is not recorded in traditional mintage figures, perhaps due to the nature of fractional coins' production which often saw irregular quantities produced for public circulation. In summary, the 1852 California Fractional Gold 50-cent coin is a valuable collectible, embodying the spirit of an era marked by gold discovery and economic expansion in the United States. Its historical context, rarity, and role in the monetary system of the time make it a prized piece for collectors and historians alike.