Watch List notes:

Antoninus Pius. As Caesar, AD 138. AR Denarius (17mm, 2.99 g, 6h). Rome mint. Struck under Hadrian, AD 138. Bare head right / Pietas standing left, extending hand over altar to left and holding acerrum. RIC II.3 2731; RSC 1063a. Toned, with some darker patches on reverse. VF.