Cyzicus, 19mm, 3.47g – Sear 17250 B, RIC 26 B

“Obv: CONSTANTINVS IVN NOB C, laureate, draped, cuirassed bust left
Rev: PROVIDEN-TIAE CAESS, campgate, 2 turrets, 8 layers, star above, no doors.
Mintmark: SMKB.

RIC VII Cyzicus 26, rated R2”