Severus Alexander (222-235).     AR Denarius, Rome mint, 222 AD.   Obv.    IMP C M AVR SEV ALEXAND AVG. Laureate and draped bust 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  7c.     3.21 g.   19.00 mm.        Light old cabinet tone.    About EF.