Watch List notes:

IRISH COINS, George III (1760-1820), Soho coinage, Proof Halfpenny, 1805, in silver, edge plain, 8.68g/6h (S 6621; DF 600; KM. 147.2c). Minor hairlines, otherwise brilliant and virtually as struck, toned, extremely rare £1,500-2,000

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Provenance: Glendining Auction, 1 October 1980, lot 94