ROMAN EMPIRE: Diocletian. AD 284-305. Ceremonial AV aureus (6.33 g). Antioch, AD 287. 

IMP C C VAL DIOCLETIANVS P F AVG, laureate bust left, wearing consular robes and holding eagle-tipped sceptre in right hand.
IOVI CONSERVATORI AVGG, emperor, laureate and in military dress, standing right, holding sceptre, receiving Victory on globe from Jupiter, naked but for chlamys around shoulders, standing left, holding sceptre

value mark N (= 50) in field.
Mintmark SMA.

RIC -. Lukanc, Diokletianus, p. 152, 5 (Dumbarton Oaks). Depeyrot p. 138, 4 (Dumbarton Oaks). 
Extremely rare. 

Re-used by permission of Freeman & Sear - Gemini I, Session 2, Lot: 443, Jan 2005.