Watch List notes:

Antoninus Pius (138-161). AE Sestertius, 150-151 AD. D/ IMP CAES T AEL HADR ANTONINVS AVG PIVS PP. Laureate head right. R/ ROMA (in ex.) TR POT XIIII COS IIII SC. Roma, helmeted, seated left, holding spear and resting left elbow on shield set on prow. RIC 874; C. 690. AE. g. 27.16 mm. 34.00 A choice example, sharply struck on a medallic flan. Glossy dark green patina, expertly smoothed. Good VF.