Watch List notes:

BRITISH COINS, William IV, Halfpenny, 1837, bare head right, W.W. on truncation, date below, GULIELMUS IIII DEI GRATIA, toothed border both sides, rev Britannia helmeted seated right with shield and trident, emblems in exergue, BRITANNIAR: REX FID: DEF: (Peck 1465; S 3847). Tiny verdigris spot on the obverse, considerable lustre on the reverse though with patchy tone, otherwise extremely fine.
from the David Sellwood Collection

Estimate: £80-120