Watch List notes:

A COLLECTION OF ANCIENT COINS, The Property of a Gentleman, Hadrian (AD 117-138), Æ As, struck AD 119, IMP CAESAR TRAIANVS HADRIANVS AVG, laureate bust facing right, with light drapery on left shoulder, rev PONT MAX TR POT COS III, S-C (only partially visible), Britannia seated facing, her right foot on a rock, resting her head on her right hand and holding sceptre, large shield on right, [B]RITANNIA in exergue, 8.10g, 7h (RIC 577b; BMC 1175; RCV 3676). Dark green patina, about fine and scarce.
this the first representation of Britannia to appear on a coin

Estimate: £80-120