Collectible coins, such as the Liberty Head Double Eagle, are highly sought after by numismatists and investors alike. The Liberty Head Double Eagle, minted from 1849 to 1907, features a design by Augustus Saint-Gaudens and symbolizes American prosperity. The 20 Twenty Dollars coin, specifically the 1858 edition, is notable for its gold content and historical significance in United States currency. Its value is influenced by factors such as rarity, condition, and demand among collectors.