Constantius I AE Follis. 301-303 AD. Lyons mint. 

Obv: CONSTANTIVS NOB C, laureate, cuirassed bust left
Rev: GENIO POP-VLI ROMANI, Genius standing left, modius on 
head, naked except for chlamys over left shoulder, holding
patera and cornucopiae, A in right field, PLG in ex. 

RIC VI Lyons 166a, rated C2.

Contributed by Dane for Roma Numismatics, June 2009