George III (1760-1820), New Coinage, Crown, 1820 over 19 LX, laureate head right, rev. St George and Dragon within Garter, edge lettered upwards, 28.21g, 6h (ESC 220A [R3]; Bull 2018; Spink 3787), edge bruise at 11 oclock, wiped and lightly contact marked, otherwise residually lustrous, bolder than very fine, the overdate rare