Magnentius, AE3 22.5 mm, Lyons. AD 350-353. 4.93 g. 

DN MAGNEN-TIVS PF AVG, bare-headed, draped, cuirassed bust right, A behind head.
GLORIA ROMANORVM, emperor on horseback galloping right, no 
shield, wielding spear at a bare-headed enemy before the 
horse, broken spear and shield beneath the horse. 

Mintmark RPLG dot. 

RIC VIII Lyons 116.
Scarce.

With permission of cgb.fr, Oct. 2006