Septimius Severus AE25 of Corinth. AD 193-211. 9.88 g.

L SEPT SEV PER AVG IMP VII (or VIII?), laureate, heroic bust left, seen from the back, holding spear and shield. Countermark: head of emperor right in oval incuse. 
C L I COR, Poseidon seated left, holding dolphin and trident.

Pausanias 10e5 (added to type); BMC 642 var (bust type).

With permission of Leu Web Auction 30, lot Lot 1301