Antoninus Pius. A.D. 138-161. AR denarius (17.9 mm, 3.06 g, 5 h). Rome mint, struck A.D. 152. IMP CAES T AEL HADR ANTONINVS AVG PIVS P P, laureate head right / TR POT XV COS IIII, TRANQ, Tranquilitas standing right, holding rudder and grain ears. RIC 218; BMCRE 757; RSC 826. VF.