On offer is an undated (289 AD) Roman Empire BI (silver billon) Aurelianianus (Antoninianus) coin of Diocletian.
Technically it is a coin of Diocletian's co-ruler Maximian, as it was minted at Lugdunum in Gaul during the period of Maximian's authority over that region as "Augustus" (286-305).
This coin is graded MS (Mint State) by NGC Ancients, with a Strike rating of 5/5 and a Surface rating of 4/5. The NGC holder notes, "silvering": the coin retains its as-made coating of silver, applied to bolster the value of the coin within the Roman economy.
The coin is approximately 21mm in diameter.
Lugdunum mint (modern Lyon, France), 1st officina.
Obverse: bust of Diocletian right, radiate, draped, and cuirassed.
Inscription: IMP C DIOCLETIANVS P F AVGG
Reverse: Jupiter standing left, wearing chlamys; Victory standing on globe held in his outstretched hand; scepter in left hand; at his feet, an eagle standing right.
Inscription: IOVI TVTATORI AVG; P in exergue
The Roman Imperial Coinage catalog designation for this coin is RIC V Diocletian 53.
The item pictured is the exact item which will be received. The prospective purchaser should independently judge the quality and condition of this piece based upon the original photos provided.