- Misplaced Date, Wiley-Bugert WB-23 -- 8,418,000 minted at Philadelphia -- a large mintage; this specific die pairing is the notable part, not the date's overall rarity - Source: https://www.greysheet.com/prices/sp/liberty-seated-half-dollars/8955 (a general category page, not a per-variety citation -- not independently verified this round)