Diocletian, 285 AD. Ticinum. 

Obv: IMP CC VAL DIOCLETIANVS PF AVG, radiate, cuirassed bust right. 
Rev: IOVI CONSERVAT, Jupiter standing left, holding thunderbolt and sceptre. 
Mintmark PXXIT. 

RIC V-2 222; Sear 12660
Courtesy of TimeLine Auctions (www.timelineauctions.com), Apr, 2013