Ancient & Islamic Coins

Roman Imperial Coinage, Diocletian, Antoninianus, Lugdunum (?), c. 290-2, imp diocletianvs avg, helmeted bust left with spear and shield, rev. iovi avgg, Jupiter standing facing, head left, holding Victory on globe and sceptre, eagle at feet, a (?) in exergue, 3.93g (RIC 28 var. [left facing helmeted bust unlisted]). About extremely fine with some original silvering, very rare £60-£80