Watch List notes:

Antoninus Pius, with Marcus Aurelius as Caesar. AD 138-161. Æ Sestertius (34mm, 34.14 g, 12h). Rome mint. Struck AD 140-144. ANTONINVS AVG PI VS P P TR P COS III, laureate head right / AVRELIVS CAESAR AVG P II F COS around, S C below, bareheaded, draped, and cuirassed bust right. RIC III 1212; Banti 15 var. (obv. bust type). VF, brown surfaces, smoothed, details lightly enhanced. Well centered on a broad and heavy flan.