Septimius Severus, AE35 of Miletopolis, Mysia. 193-211 AD. 23.84 gr.

AY KAI L CEPT CEOVHRO AYG.., laureate, draped, cuirassed bust right, NI countermark below.
Unclear legend around, MEILHTOPOLEITWN below, Hermes seated left
on rock, holding caduceus.

BMC 14 var (this reverse for Commodus); apparently unpublished for Severus.

From the Ian Roper Collection. 

Auction 123, Lot: 80. Sold for $60.

Used with permission of CNG (cngcoins.com), February, 2012

Note: This reverse type is known for several emperors including 
Antoninus Pius, Commodus, Macrinus, Severus Alexander and Trajan Decius.