George III (1760-1820), New coinage, Halfcrown, 1820 (ESC 2105; S 3789). Lightly cleaned in the past, otherwise virtually mint state £300-£400

Provenance: Glendining Auction, 23 November 1983, lot 109; A.E. Bray Collection, Glendining Auction, 1 May 1985, lot 213