Watch List notes:

Antoninus Pius. AD 138-161. AR Denarius (18mm, 3.11 g, 6h). Rome mint. Struck AD 157-158. Laureate head right / Tranquillitas (or Annona) standing right, foot on prow, holding rudder and modius filled with grain ears. RIC III 275; RSC 1039. Darkly toned, a few minor flan flaws. Good VF.

From the Gregory Collection.