Septimius Severus, Rome mint, 197-198 AD.,
Denarius (15-18 mm / 2,15 g),
Obv.: L SEPT S[EV PERT A]VG IMP X , laureate head of Septimius Severus right.
Rev.: [MARTI P] - A-CIFERO , Mars standing l., right foot on cuirass or helmet, holding branch and leaning on reversed spear.
RIC IV, I, 104, 113 (common) ; Coh. 315 .