Vetranio AE3, Siscia. 350 AD. 

DN VETRANIO PF AVG, Laureate, draped and cuirassed bust right; A 
behind head, star before head.
CONCORDIA-MILITVM, emperor standing front, looking left, 
holding labarum in each hand; star above; 
A in left field.
Mintmark dot Gamma SIS star. 

RIC VIII Siscia 290; Sear 18903

Used with permission, Aug. 2016.