Diadumenian denarius, struck AD 217-218 at Rome mint.
Obv: M OPEL ANT DIADVMENIAN CAES , bareheaded and draped bust right.
Rev. PRINC IVVENTVTIS, Diadumenian
standing facing, head r., holding standard in r. hand and sceptre in l.;
in field r., two standards.
3,28 g, 20 mm.
RIC 102