Diadumenian (217-218). AE As. D/ M OPEL ANTONINVS DIADVMENIANVS CAES. Draped and cuirassed bust right, head bare. R/ PRINC IVVENTVTIS SC. Diadumenian standing front, head right, holding standard and sceptre; on right, two standards. RIC 212. AE. g. 9.58 mm. 26.00 R. VF/About VF.