Constantine, AE Follis, Siscia, 18mm, 2.20g. 328-329 AD.

CONSTAN-TINVS AVG, laureate head right.
PROVIDEN-TIAE AVGG, campgate, eight layers with dots in
arches in the top layer, star above, two turrets, no doors.

Mintmark ASIS double crescent.

RIC VII Siscia 214, rated C3
Ex Grassmoor Hoard.
 
Contributed by Alex Kalman, June 2012.