Diocletian, AE antoninianus, Lyons mint.

IMP C DIOCLETIANVS AVG, radiate, draped, cuirassed bust right.
IOVI TVTATORI AVGG, Jupiter standing left, holding 
Victory on globe and sceptre, eagle at foot. No field
or mintmark. 
RIC V-2 54 var (obv legend); Bastien Supp. 3, 164 var (this 
obv. but off. A).

With permission of cgb.fr. Oct. 2012.