Commodus, AE31 of Augusta Traiana. AD 177-192. 21.51 g. 

AY KAI M AY KOMODOC, laureate, draped and cuirassed bust right.
HGE L AIM IOYCT AYGOYCTHC TRAIANHC, city gateway between two towers with a third tower in background.

Arbanas find inv. 1560. Not in Varbanov, Schoenert-Geiss etc.

Image courtesy of Svetoslava Filipova, "Roman Provincial Coins from the excavations in the Arbanas quarter of Radomir"