ROMAN EMPIRE: Severus Alexander. AD 222-235. Æ dupondius. Black patina. gVF US$275.00 April 09, 2006 Seller freemanandsear Estimate: US$ 475 ROMAN EMPIRE: Severus Alexander (AD 222-235). Æ dupondius (9.85 gm). Rome, AD 231-235. Radiate head of Alexander right / MARS VLTOR S-C, Mars walking right in armor, holding spear and shield. RIC 636. Cohen 164 var. Overall black patina, with some light earth color in fields. Good VF. R3763 Freeman & Sear, P.O. Box 641352, Los Angeles CA