Watch List notes:

Diadumenian. As Caesar, A.D. 217-218. AR denarius (18 mm, 3.63 g, 6 h). Rome, A.D. 217. M OPEL ANT DIADVMENIAN CAES, bare-headed and draped bust of Diadumenian right / PRINC IVVENTVTIS, prince standing left, holding baton and scepter; behind, two standards. RIC 109; BMC 82, note; RSC 14. Toned. Very fine.