Watch List notes:

Diadumenian. As Caesar, AD 217-218. AR Denarius (21mm, 3.11 g, 6h). Rome mint. 2nd emission of Macrinus, AD 217-218. Bareheaded, draped, and cuirassed bust right / Diadumenian standing left, holding signum and scepter; two signa to right. RIC IV 102 (Macrinus); Clay Issue 2; RSC 3b. Lightly toned, a hint of porosity. Near EF.

From the collection of an English Queen's Counsel. Ex Ernst Ploil Collection (Part II, Numismatia Ars Classica 95, 6 October 2019), lot 340.