The Capped Bust Quarter is a notable type of silver coin produced by the United States Mint from 1815 to 1838. The design features a bust of Liberty with a cap or “capped” head on the obverse, and an eagle with a shield on the reverse. The 1820 Capped Bust Quarter is part of a series that includes various mint marks and variations, making it collectible among enthusiasts. Coins from this era, including the four-dollar denominations, are sought after for their historical significance and numismatic value.