Watch List notes:

Marcus Aurelius. AD 161-180. AR Denarius (18mm, 3.24 g, 6h). Rome mint. Struck AD 172. Laureate head right / Mars, in military dress, standing right, holding spear and shield set on ground to right. RIC III 261; MIR 18, 231-4/30; RSC 290. Lightly toned, traces of deposits. VF.