Lot 662:
Diocletian (284-305). AV Aureus, Cyzicus or Antioch mint, 287-290. Obv. Head right, laureate. Rev. Emperor on horseback right, raising right hand. RIC V 287 (Cyzicus) or 310 (Antioch). 3.00 g. 20.00 mm. RR. Very rare type. Half a coin. EF.