Diocletian, AE Follis, Siscia, 300 AD. 

Obv: IMP DIOCLETIANVS PF AVG, laureate head right.
Rev: GENIO POP-VLI ROMANI, Genius standing left, modius on head, 
naked except for chlamys over left shoulder, holding patera 
and cornucopiae. 
L-A across fields. 
Mintmark XXISIS. 

RIC VI Siscia 110, rated Scarce.

With permission of Roma Numismatics, October, 2010