Diocletian (AD 284-305), Gold Aureus, 5.4 gms., mint of Rome, undated, IMP C VAL DIOCLETIANVS PF AVG, radiate and cuirassed bust right, rev. IOVI CONSERVAT AVGG, Jupiter standing right holding thunderbolt and sceptre (RIC 134), tiny bump in reverse exergue otherwise extremely fine and rare with a handsome portrait