Watch List notes:

BRITISH COINS, George III (1760-1820), Uniface Lead Trial Striking for the obverse of the Half-Sovereign, 1817, laureate head right, date below, legend GEORGIUS III DEI GRATIA, rev blank, struck on a 25.5mm ovoid flan, 6.44g (cf S 3786). As struck with brilliance to fields, some patchy tone, otherwise extremely fine and unusual.

Estimate: £200-300