Diocletian. Struck from 300 AD. AE Follis, London mint.

Obv: IMP DIOCLETIANVS AVG, laureate and cuirassed bust right
(large, spread bust type, not to be confused with the smaller
bust type of London RIC 6a).
Rev: GENIO POPV-LI ROMANI, Genius standing left, naked 
except for chlamys over left shoulder, holding patera and
 cornucopiae. No mintmark. 

RIC VI 28a. 
Used with permission of TimeLine Originals (www.time-lines.co.uk)

July 2009