This coin has a workshop that is not listed in RIC. I have had an example of this officina before though; but not in as nice condition. The head with diadem type is also much rarer than the usual full bust.
Constantine I
A.D. 328
19mm 2.9gm
CONSTANTINVS MAX AVG; head with rosette-diadem
CONSTANTINIANA DAFNE; Victory seated l. on cippus, palm branch in left hand and laurel branch in right hand, looking r.; trophy at front, at the foot is a kneeling captive with head turned being spurned by Victory; Z in left field.
in ex. CONS
RIC VII Constantinople 30
