Diocletian, AE antoninianus, Lyons mint. 289 AD.

IMP C DIOCLETIANVS P AVG, radiate, cuirassed bust left,
holding spear and shield.
IOVI TVTATORI AVGG, Jupiter standing left, holding 
Victory on globe and sceptre, eagle at foot. Mintmark P.

RIC V-2 Lyons, 54; Bastien 147; Cohen 295

With permission of cgb.fr. Oct. 2012.