Watch List notes:

Marcus Aurelius. AD 161-180. AR Denarius (18mm, 3.42 g, 6h). Rome mint. Struck AD 170. Laureate head right / Salus standing left, holding scepter and feeding from patera snake coiled around and rising from altar to left. RIC III 222; MIR 18, 195-4/30; RSC 546. Minor porosity. VF.