Constantine I. AE Follis of Lyons. AD 307-337. 5.10 g. Struck circa 309-310 AD. 

IMP CONSTANTINVS P F AVG, laureate, draped and cuirassed bust right, seen from the back.
SOLI INVIC-TO COMITI, Sol standing left, holding globe and raising right hand.

F-T across fields.
Mintmark PLG. 

RIC VI 310. 


With permission of cngcoins.com, auction 13, lot 2837.