Collectible coins, often referred to as numismatics, are valued for their historical significance, rarity, and condition. The United States' 1826 Coronet Head Cent is a specific type of penny featuring the portrait of Liberty, designed by William Kneass. This coin is notable for its distinct design elements and is part of a series struck from 1816 to 1857, with variations in mintmark that can affect its rarity and value among collectors. The Coronet Head design is characterized by its classic style, making it a popular choice for numismatists.