Watch List notes:

Divus Antoninus Pius. Died AD 161. AR Denarius (18mm, 2.75 g, 6h). Commemorative issue. Rome mint. Struck under Marcus Aurelius and Lucius Verus, AD 162. Bare head right / DIVO PIO, rectangular altar, with horns on top, and door in front. RIC III 441 (Aurelius); MIR 18, 47-4/10; RSC 357. Toned, minor porosity. VF.

From the Richard L. Horst Collection.