Severus Alexander AR Denarius, 222 AD. Obv: IMP C M AVR SEV ALEXAND AVG: Bust of Severus Alexander, laureate, draped, right. Rev: P M TR P COS P P: Mars, helmeted, in military attire standing left, holding olive-branch in right hand and spear reversed in left hand - RIC IV Severus Alexander 7c - 3.21g, 18mm