Diocletian, Lugdunum (Lyon) mint, officina 1, 292-294 AD.,
silvered Æ Antoninianus (20-22 mm / 3,52 g),
Obv.: IMP DIOCLETIANVS AVG , his radiate and cuirassed bust facing r.
Rev.: IOVI - AVGG / A , Jupiter enthroned left, holding Victory on globe in right and leaning on scepter in left, officina numeral A in exergue.
RIC V/2, 224, 34 ; Coh. 171 .