Magnentius (350-353), AR-Siliqua, 3.43g. Trier, 350-353 AD. 

Obv: IMP CAE MAGNENTIVS AVG, bare-headed, draped and cuirassed 
bust right
Rev: VIRTVS EXERCITI, Virtus or soldier standing facing, head
right, holding spear and resting hand on shield. Mintmark TR. RIC VIII 256. 

Submitted by "AC", October 2009