Collectible coins can be categorized into various types based on their historical significance, material composition, and rarity. The United States quarter, specifically the 25-cent piece, is a popular collectible, with unique designs issued over the years, including the State Quarters and America the Beautiful series. California Fractional Gold coins, minted during the California Gold Rush, are small denominations of gold that circulated in the 19th century and are sought after by collectors for their historical context and intricate designs. The 1864 coins, particularly the Indian Head cent and the Liberty Head gold pieces, are notable due to their production during a pivotal year in American history. Collectors often face challenges with coins of unknown origins or attributes, which can affect their value and desirability in the marketplace.

Item Denomination Series Year Mint
1864-- (Unknown) California Fractional Gold 25¢ (Twenty Five Cents, Quarter) California Fractional Gold 1864 Unknown