Constantius I AE follis, Lyons. AD 305-307.

IMP CONSTANTIVS AVG, laureate, cuirassed bust left.
GENIO POP-VLI ROMANI, Genius standing left by 
lighted altar, modius on head, naked but for draped
loins, holding patera and cornucopiae.
Star in right field.
Mintmark PLG

RIC VI Lyons 187a var (draped loins)
Contributed by Robert Edward, Nov. 2014.