Constantine I, AE follis, Thessalonica, 326-328 AD.

CONSTAN-TINVS AVG, laureate head right.
PROVIDEN-TIAE AVGG, campgate, six layers, two turrets, star 
above.	
Dot in right field.
Mintmark SMTS Delta

RIC VII Thessalonica 153.

Contributed by Russell Stanley, July 2012.