Constantine I as Caesar, AE follis of Aquileia. 

CONSTANTINVS NOB CAES, laureate head right.
VIRTVS AV-GG ET CAESS NN, Prince on horseback, galloping 
right, holding shield on left arm, and wielding spear at a 
kneeling enemy before the horse, a second enemy beneath the horse. 

Mintmark AQ Gamma. 

RIC VI Aquileia 82b; Sear 15561.

With permission of TimeLine Auctions (www.timelineauctions.com), August, 2014