Severus Alexander AD 222-235. Denarius (AR; 19-21mm; 2.84g; 12h) 223. IMP C M AVR SEV ALEXAND AVG Laureate, draped bust of Severus Alexander to right. Rev. P M TR - P II - COS P P Mars helmeted, in military dress, standing front, head left, holding branch in right hand and vertical spear in left.
BMCRE VI p. 123, 98 (Issue 3, AD 223); C. 231; RIC IV, II p. 73, 23.