Collectible coins encompass a variety of types, including commemorative, bullion, and numismatic coins, which are sought after for their historical significance, rarity, and condition. The United States has produced many collectible coins, including the $20 gold pieces, often referred to as "Double Eagles," which were issued between 1849 and 1933. Territorial coins, minted in the mid-19th century, represent currency from areas exploring statehood before becoming official U.S. states. The year 1856 marks the issuance of several notable coins, including the famous Flying Eagle cent. Coinage with unknown origins adds an element of mystery and intrigue, presenting challenges for collectors in identifying provenance.

Item Denomination Series Year Mint
1856-- (Unknown) Territorials $20 (Twenty Dollars) Territorials 1856 Unknown