1821 Capped Bust Half Dollar. O 101-a. Rarity-1. AU-58 (PCGS).This wonderfully original example exhibits iridescent electric blue and pinkish-apricot peripheral iridescence around otherwise smoky-gray surfaces. Overall sharply defined with plenty of lively mint luster remaining, this is a premium quality Choice AU from the early portion of the Capped Bust half dollar series.From the Greenway Collection. Stacks paper envelope included.