Constantine I (307-337). AE Follis, Siscia mint, 328-329 AD. Obv. CONSTANTINE AVG. Laureate head right. Rev. PROVIDENTIAE AVGG. Camp gate with two turrets, no doors, star above; in exergue, Γ SIS crescent. RIC 214. AE. g. 2.85 mm. 18.00 Partially silvered. Brow tone with golden hues. Good EF.