City Commemorative AE Follis, 2.15g; 19mm, 334-335 AD. Siscia. 

Obv: CONSTAN-TINOPOLIS, helmeted, mantled bust of Constantinopolis 
left, holding sceptre over shoulder
Rev: no legend, Victory standing facing, foot on prow, holding 
sceptre and resting hand on shield. 

Mintmark dot BSIS dot. 

RIC VI Siscia 241.

With permission of Roma Numismatics, December, 2009