Constantine II AE Follis. 320-321 AD. Siscia.

CONSTANTINVS IVN NOB C, laureate head right.
CAESARVM NOSTRORVM around VOT-V within wreath. 

Mintmark ASIS star. 

RIC VII Siscia 163; Sear 17175

With permission of Savoca Numismatik GmbH, Aug. 2015.