Constantine I, AD 307-337. AE Follis, 19mm (2.45 gm). Laureate head right, CONSTAN-TINVS AVG / Camp gate, two turrets, no doors, star above, with six stone layers, PROVIDEN-TIAE AVGG; SMKΔ. RIC VII 24, Cyzicus (pg. 647). From my personal collection. Item # RI0219 $ 65