Watch List notes:

THE COLLECTION OF A CLASSICIST, ANCIENT COINS, Hadrian (AD 117-138), Æ As, struck AD 119, IMP CAESAR TRAIANVS HADRIANVS AVG, laureate bust facing right, with drapery on left shoulder, rev PONT MAX TR POT COS III, S-C, Britannia seated facing, her right foot on a rock, resting her head on her right hand and holding sceptre, large shield on right, [BR]ITANNI[A] in exergue, 7.54g, 6h (RIC 577b; BMC 1175). Brown tone, good very fine, scarce.
This is the first representation of Britannia to appear on a coin.

Estimate: £150-200