Antoninus Pius, AE sestertius. AD 150-151. 32.5 mm, 27.28 g.

IMP CAES T AEL HADR ANTONINVS AVG PIVS PP, laureate head right.
TR POT XIIII COS IIII around, ROMA in exergue, S-C across fields, Roma seated left, holding spear held upright and parazonium, shield set on a prow at her side. 

RIC III 874; BMC 1871; Banti 328. 

With permission of cngcoins.com, auction 460, Lot 546, Jan 2020.