Collectible coins encompass a wide range of numismatic items that can include historical, rare, or artistically significant pieces. The United States has a rich history of coinage, including denominations like the four-dollar gold piece, which was minted in several years, although the 1838 version is particularly notable for its limited mintage and design features. The Coronet Head Cent, featuring a classic design by engraver Christian Gobrecht, was produced during the mid-19th century and is recognized for its distinct head and laurel wreath motif, making it a sought-after item among collectors.