Diocletian. AD 284-305. AR Argenteus (18mm, 3.22 g, 6h). Rome mint. 3rd emission, circa AD 294. Laureate head right / Four tetrarchs sacrificing over tripod before city enclosure with six turrets; R in exergue. RIC VI 32a; Jeločnik 52; RSC 516†f. Toned. Good VF.