Collectible coins encompass a diverse range of numismatic items, including those issued by the United States, such as the 25-cent quarter. The California Fractional Gold coins, minted in the mid-19th century, were often used to facilitate transactions during the Gold Rush when small change was scarce. The 1858 date signifies a specific year's issue, and coins from this period often hold significant historical and monetary value. The term "unknown" may refer to an unidentified or unauthenticated piece within a collector's inventory.

Item Denomination Series Year Mint
1858-- (Unknown) California Fractional Gold 25¢ (Twenty Five Cents, Quarter) California Fractional Gold 1858 Unknown