Severus Alexander, 222-235. Dupondius (bronze, 13.26 g, 26 mm), Rome. IMP ALEXANDER PIVS AVG Radiate head of Severus Alexander to right, with slight drapery on his left shoulder. Rev. MARS VLTOR / S - C Mars advancing right in military attire, holding spear in his right hand and shield in his left. RIC 636. Good.