★ Britannia ★

Antoninus Pius (138-161), AE As, issued 154-55. Rome mint (or mint in Britain?), 10.26g, 26mm.
Obv: ANTONINVS AVG PIVS P P TR P XVIII; Laureate head right
Rev: BRITANNIA COS IIII; Britannia seated left on rock, propping head on hand and resting hand on rock, in attitude of mourning; large round shield with central spike and transverse vexillum projecting upwards to left.
RIC III 934; SCBC 646.
Struck to celebrate military successes in Britain by governor Lollius Urbicus, who also constructed the Antonine Wall. Find locations in Britain suggest that the issue was in fact struck there.