Antoninus Pius as Caesar (25 February-10 July 138 AD). AR Denarius, struck under Hadrian. Obv. IMP T AEL CAES HADR ANTONINVS. Bare head right. Rev. TRIB POT COS. Pietas standing left, extending hand over altar to left and holding acerrum. RIC II (Hadr.) 452. 3.40 g. 18.00 mm. About EF/EF.