Ivan Varbanov, AE27 (copper), based on an issue of Markianopolis, Moesia.

AVT K M ANT VARBANOV AVG, laureate, draped bust of Ivan Varbanov right, facing draped bust of Serapis left, polos on head.
VP MHNOFILOY MARKIANOPOLITWN, legend ending in a small kantharos-like monogram, city view of Markianopolis, surrounded by wall with thirteen towers, temple and altar within the courtyard. 

Based on Moushmov 805; Varbanov 1972 of Gordian III.