Diadumenian, as Caesar. 217-218 AD. AR Denarius.

M OPEL ANT DIADVMENIAN CAES, draped bust right.
PRINC IVVENTVTIS, Diadumenian standing left, holding baton and sceptre, two standards to right. 

RIC 108; RSC 14a; BMCRE 85; RSC 14a.

With permission of Dr. Busso Peus Nachfolger - Auction 420, Lot 395, Nov. 2017.