Magnentius. AE21. Trier. 350-353 AD. 

DN MAGNEN-TIVS PF AVG, bare-headed, draped, cuirassed bust
 right 
VICT DD NN AVG ET CAES, two Victories facing one another,
 holding between them a wreath inscribed VOT-V-MVLT-X.

Letter C in lower centre. 
Mintmark TRP or TRS. 

RIC VIII Trier 316C var (unlisted letter C in centre). 
Unlisted with the letter C for either the long version or
the long version of the reverse legend.

With permission of Roma Numismatics, Oktober, 2009