Constantine I  AD 306-337 AE3 
Obv: IMP C FL VAL CONSTANTINVS P F AVG - Laureate head right 
Rev: IOVI CONS-ERVATORI - Jupiter standing left, holding 
Victory and sceptre, at feet, left, an eagle . Exe: SMN / 
(delta) Nicomedia mint: AD 311 = RIC VI, 69c Rare, page 566 - 4.16 g.