Septimius Severus (193-211). AE20 of Philadelphia, Lydia. 3.93 g.

Obv: AY KAI L CEOYHROC, laureate head right.
Rev: FILADELFEWN, Hermes standing left, holding purse and caduceus.

Apparently unpublished. Pecunem 30, 342.
Extremely rare 

Pecunem.com Auction 30, Lot 342. March 2015