Severus Alexander, 222-235. Denarius (silver, 2.20 g, 19 mm), Rome. IMP C M AVR SEV ALEXAND AVG Laureate, draped, and cuirassed bust of Severus Alexander right. Rev. P M TR-P-COS P P Mars standing facing, head left, olive branch raised in right hand, reversed and grounded spear in left. RIC 7. Fine.