Roman Empire, Diocletian, 284-305, Aureus 293-294, Trier, very rare, NGC graded Ch AU

Roman Empire. Diocletian, 284-305. Aureus 293-294, Trier. Gold 5.29 g.; 18 mm.
Obverse: Laureate head of Diocletian to right. Obverse caption: DIOCLETIANVS P F AVG //
Reverse: Jupiter, shoulders draped, standing left, holding thunderbolt in right hand and sceptre in left hand. Reverse caption: IOVI CONSER AVGG // PT

RIC: 15.

A magnificent specimen, with a very high embossed portrait of Diocletian, in an exceptional state of preservation. Struck on a wide flan, only a tiny part of the grenetis is out of flan.
A slight mark under the first I on the reverse. NGC graded Ch AU Strike: 5/5 Surface: 4/5, edge marks