Constantine I AE3.
Obv: CONSTAN-TINVS AVG, laureate head right
Rev: PROVIDEN-TIAE AVGG, campgate, 2 turrets, 6 layers, star above, no doors.
Mintmark: PLON
RIC VII London 293, rated C3
Contributed by Dane for George Clegg (biggyg2), October 2007