Constantine II, AE follis, Siscia. AD 317.

CONSTANTINVS IVN NOB CAES, laureate, draped and cuirassed bust right.
CLARITAS-R-EIPVBLICAE, Sol standing left, chlamys across 
left shoulder, holding globe, right hand raised.

Mintmark Gamma SIS.

RIC VII Siscia 37, unlisted legend break
Rated R3.

Dane's collection, Oct. 2014.