1820 Capped Bust Quarter. B-4. Rarity-2. Small 0. EF-45 (PCGS).Satin to modestly reflective surfaces are bathed in bold steel and olive-gray patina. While this is a fairly common die marriage in an absolute sense, all Large Diameter Capped Bust quarters are scarce when compared to many other U.S. coin types, especially in the finer circulated and Mint State grades. This is an ideal candidate for inclusion in a circulated type set.