Magnentius AE3. 350-353 AD. 

DN MAGNEN-TIVS PF AVG, bare-headed, draped, cuirassed 
bust right, A behind bust
GLORIA ROMANORVM, emperor on horseback right, holding 
shield on left arm, about to throw a spear at a 
bare-headed enemy in front of the horse, shield 
and broken spear beneath the horse. 

TRS crescent in ex. 

RIC VIII Trier 271

With permission of Roma Numismatics, August, 2009