SINCONA BRITISH COLLECTION – PART 2. GREAT BRITAIN. GEORGE III, 1760-1820.
Proof Guinea 1774, London. Fourth laureate head. By Thomas Pingo. Plain edge. 8.34 g. Spink 3728. WR 95. Bull 689. Fr. 355. Sehr selten / Very rare. NGC PF61.
(~€ 7'280/USD 8'065)
From Spink Numismatic Circular, London, October 1996, lot 4662.