Collectible coins encompass a range of numismatic items sought after for their historical significance, rarity, and aesthetic appeal. The United States quarter, specifically the Twenty-Five Cents coin, is an iconic denomination first issued in 1796, known for its varying designs over the years. California Fractional Gold, minted between 1852 and 1882, represents gold coins issued in small denominations to facilitate commerce during the California Gold Rush. The 1863 coinage year holds particular interest for collectors due to its association with the Civil War era and reflected economic conditions at that time. The term "Unknown" may refer to a coin whose specific details, provenance, or variety remain unidentified among collectors and scholars.

Item Denomination Series Year Mint
1863-- (Unknown) California Fractional Gold 25¢ (Twenty Five Cents, Quarter) California Fractional Gold 1863 Unknown