The Capped Bust Quarter is a U.S. coin minted from 1815 to 1838, featuring a depiction of Liberty with a capped bust. The 1821 Capped Bust Quarter was struck at the Philadelphia Mint and is part of the series characterized by its variety of designs and denominations. Collectors value these quarters for their historical significance, artistry, and the variations in mintage and design details, especially in the 1821 year. The coin typically has a face value of 25 cents but can command higher prices in fine condition or higher grades among collectors.