Magnentius AE3. 

Obv: IMP CAE MAGNENTIVS PF AVG, bare-headed, draped, cuirassed bust right 
Rev: VICTORIA AVG-LIB ROMANOR, Emperor, bare-headed and in military dress, 
 standing right holding standard with eagle on the banner in right hand and 
 olive branch in left hand, placing left foot on the shoulder of a seated and 
 bare-headed captive. 
Mintmark: RT. 

RIC VIII Rome 177, rated common

With permission of Pecunem & Gitbud & Naumann - Auction 16, May 2014.