Diadumenian. Silver Denarius (3.5 g), AD 218. Rome, struck under Macrinus, AD 217. M OPEL ANT DIADVMENIAN CAES, bare-headed, draped, and curaissed bust of Diadumenian right. Reverse: PRINC IVVENTVTIS, Diadumenian, in military attire, standing facing with head right, holding standard and scepter; right, two standards set in ground. RIC 102 Sear 7449; RSC 3; BMCRE 87. Choice Very Fine. Estimated Value $500 - 600