Antoninus Pius Æ As. Rome, AD 154-155.

ANTONINVS AVG PIVS P P TR P XVIII, laureate head right Rev. BRITANNIA COS IIII,
Britannia seated left on rock, resting her head on her right hand, and resting her l
eft on rock, round shield and vexillum in background; SC in exergue.

RIC 934; BMC 1971; SCBC 646. 26mm, Very Fine, Pierced, Rare.