Gordian III and Serapis AE 28mm Pentassarion of 
Dionysopolis, Moesia Inf. 

AVT K M benow, ANTWNIOC GORDIANOC AVG around, 
confronted busts of Gordian and Serapis
DIONUCOPOLEITWN, Demeter standing left, holding grain 
ears and sceptre. E in right field. 

Varbanov 540-541; Moushmov 119 type.

ebay sale by Malter Galleries.