Watch List notes:

SELEUCIS and PIERIA, Antioch. Macrinus, with Diadumenian as Caesar. AD 217-218. Æ As (21mm, 5.62 g, 5h). Laureate, draped, and cuirassed bust of Macrinus right / Bareheaded and cuirassed bust of Diadumenian right. McAlee 739. Dark brown patina. Good VF. Well centered and struck.