327-328 AD., Constantine I., Trier mint, Follis, RIC 504.

Constantine I. (the Great), Trier mint, first officina, emission 31, 327-328 AD.,
Æ Follis (18-19 mm / 3,06 g),
Obv.: CONSTAN - TINVS AVG , laureate head right.
Rev.: PROVIDEN - TIAE AVGG / PTRE (in ex.) , camp gate with two turrets, six layers, no doors and a star above.
RIC VII, 504 .