1820 50C Sq. 2, Lg Date, No Knob MS (PCGS# 6123)
The November 2011 Baltimore Auction
Lot Number: 2269
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1820 Capped Bust Half Dollar. O-106. Rarity-1. Square Base No Knob 2, Large Date. AU-55 (NGC). Medium steel gray surfaces with mint frost highlights. Modestly circulated but not heavily marked.