Constantine I, AR Miliarense, 24mm, 4.19 gr. 330-335, Constantinople. 

CONSTANTINVS MAX AVG, rosette-diademed, cuirassed bust right.
CONSTANTINVS AVG, four standards. 

Mintmark CONS.
RIC 99 var (no obv. legend); Cohen 106 var (ditto); RSC 109+ (obv. legend).
Possibly unpublished.

Contributed by Dr. Hubert Lanz, auction November 2000, 
Added July 2011.