Antoninus Pius (138-161). AR Denarius, 151-152 AD. Obv. IMP CAES T AEL HADR ANTONINVS AVG PIVS PP. Laureate head right. Rev. TR POT XV COS IIII TRANQ (in exergue). Tranquillitas standing right, holding rudder and corn-ears. RIC III 218; C. 826. 2.75 g. 18.00 mm. Scarce. Sharply struck from fresh dies. Bright grounds. EF.