Constantine I 'the Great' (307-337), AE follis, issued 326. Trier, 3.89g, 18-20mm.
Obv. CONSTANTINVS AVG, Laureate head to right.
Rev. PROVIDENTIAE AVGG, campgate with two turrets, star above; PTR (dot above crescent).
RIC VII 475.
From the JB (Edmonton) collection