Diadumenian, as Caesar, 217-218. Denarius (Silver, 20 mm, 2.89 g, 6 h), Rome, summer 217-early 218. M OPEL ANT DIADVMENIAN CAES Bare-headed and draped bust of Diadumenian to right. Rev. PRINC IVVENTVTIS Diadumenian standing front in military attire, head to right, holding standard in his right hand and long scepter in his left; to right, two standards. BMC 87. Cohen 3. RIC 102. Lightly toned and with an attractive portrait, sharply struck in high relief. Struck from a somewhat worn reverse die, otherwise, virtually as struck.