Diadumenian. As Caesar, AD 217-218. AR Denarius (19mm, 3.49 g, 6h). Rome mint. 2nd emission of Macrinus, AD 217-218. Bareheaded and draped bust right / Diadumenian standing slightly left, head right, holding signum and scepter; two signa to right. RIC IV 102 (Macrinus); Clay Issue 2; RSC 3. Near EF.Ex CNG Inventory 893913 (Mayy 2011).
Description