Diadumenian. As Caesar, AD 217-218. AR Denarius (19.5mm, 3.94 g, 6h). Rome mint. 3rd emission of Macrinus, AD 218. Bareheaded, draped, and cuirassed bust right / Spes advancing left, holding flower and raising hem of skirt. RIC IV 117 (Macrinus); Clay Issue 3; RSC 21a. Attractively toned with some light iridescence. EF. Well struck.