Constantine II AE3.

Obv: CONSTANTINVS IVN NOB C, laureate (resembles pearl diadem), draped, 
 cuirassed bust left 
Rev: PROVIDEN-TIAE CAESS, campgate, 2 turrets, 8 layers, star above, no door. 
Mintmark: SMKE. 

RIC VII Cyzicus 52


Contributed by Dane for George Clegg, August, 2005.