Maximianus AE Follis. 

IMP C MAXIMIANVS P F AVG, laureate head right (small head type).
GENIO POP-VLI ROMANI, Genius standing left, modius on head, 
naked except for chlamys over left shoulder, holding patera 
and cornucopiae. 
B in right field. 
Mintmark star SIS. 

RIC Siscia 85b. Not in new Sear for small head type.

With exclusive permission of TimeLine Auctions (www.timelineauctions.com), Nov, 2014