Watch List notes:

Antoninus Pius. As Caesar, AD 138. Æ As (26mm, 9.28 g, 12h). Rome mint. Struck under Hadrian, AD 138. Bareheaded and draped bust right / Clasped right hands holding caduceus and stalks of grain. RIC II 1088a (Hadrian). VF, green patina, some smoothing.