Vetranio AE3. 22.59mm. Siscia. 350 AD.

Obv: DN VETRA-NIO PF AVG, pearl-diademed, draped and 
cuirassed bust right, A behind head, star before. 
Rev: HOC SIGNO VICTOR ERIS, Emperor, diademed and in 
military dress, facing, head turned left, holding 
standard with chi-rho on banner and transverse sceptre,
crowned by Victory standing left behind him. 

A in left field
Mintmark dot Gamma SIS star.

RIC VIII Siscia 292; Sear 4042

With permission December, 2009