Diocletian, 284-305. Antoninianus (Bronze, 25 mm, 3.40 g, 12 h), Ticinum, 290-291. IMP C VAL DIOCLETIANVS AVG Radiate and cuirassed bust of Diocletian to right. Rev. IOVI CONSERVAT / SXXIT Jupiter standing front, head to right, holding thunderbolt in his right hand and long scepter in his left; at his feet, eagle standing left, head to right; to right, two standards. Cohen 203. RIC 228. Rare. The reverse double struck, otherwise, extremely fine.