City Commemorative 330-331 AD. AE Follis.

Obv: CONSTAN-TINOPOLIS, laureate, helmeted and mantled 
bust of Constantinopolis left, holding sceptre over 
shoulder.
Rev: Victory standing facing, head left, foot on prow, 
holding transverse sceptre and resting left hand on 
shield. 

Star in left field. 
Mintmark PCONST.

RIC VII Arles 352, rated R4.

Courtesy of dnecoins.com, March 2010.