Collectible coins can include a wide range of types, such as historical pieces, commemorative coins, and bullion. The United States twenty-five cents quarter is a widely recognized denomination with various designs over the years, including the iconic Washington quarter. California Fractional Gold refers to small gold coins minted during the California Gold Rush, often in denominations of less than one dollar, providing a solution for currency in gold-rich areas. The 1881 date may refer to specific coins minted in that year, which could hold particular value among collectors depending on rarity, condition, and historical significance. The term "unknown" could pertain to coins or varieties whose origins or details are not widely documented or identified in numismatic literature.

Item Denomination Series Year Mint
1881-- (Unknown) California Fractional Gold 25¢ (Twenty Five Cents, Quarter) California Fractional Gold 1881 Unknown