Maximianus AE Follis. 302-303 AD. Trier. 

Obv: IMP MAXIMIANVS AVG, laureate, draped and cuirassed bust right
Rev: GENIO POPV-LI ROMANI S-F, Genius standing left, modius on head, naked except for chlamys over left shoulder, holding patera and cornucopiae

S-F across fields.
Mintmark IITR. 

RIC VI Trier 525b. Scarce.

With permission of Roma Numismatics, June 2009