Constantine I Follis. 

Obv: CONSTANTI-NVS MAX AVG, rosette-diademed, draped, 
cuirassed bust right
Rev: DN CONSTANTINI MAX AVG around VOT XXX within wreath; 
star SMHA in ex.

RIC VII Heraclea 106. Rare (R2)

With permission of Roma Numismatics, June 2009