Watch List notes:

SELEUCIS and PIERIA, Antioch. Commodus. As Caesar, AD 166-177. AR Tetradrachm (24.5mm, 13.62 g, 12h). Struck AD 179. Laureate head right / Eagle standing facing on leg and thigh of sacrificial animal, head and tail right, with wings spread; in exergue, four-rayed star and ram's head right. Prieur 169 (this coin); McAlee 639; RPC IV.3 Online 7174/1-2 (this coin cited twice [incorrectly]). Toned, light porosity, light scratches. VF. Extremely rare, one known to Prieur, and none in CoinArchives.

From the Michel Prieur Collection. Ex G. Hirsch 168 (22 November 1990), lot 670.