Constantine I (307-337). AE Follis 313-315 AD. Siscia mint. Obv. IMP CONSTANTINVS PF AVG. Laureate bust right. Rev. IOVI CONSERVATORI AVGG NN. Jupiter standing left, chlamys across left shoulder, leaning on sceptre, Victory on globe in right hand; to left, eagle with wreath in beak; in exergue, SIS. RIC 3. AE. g. 3.57 mm. 23.00 RR. EF.