C
VALENS HOSTIL MES QVINTVS N C (Translation: Caius Valens Hostilianus Messius Quintus Nobilissimus Caesar. Caius Valens Hostilianus Messius Quintus, the most noble Caesar.)
Reverse description
Mars, helmeted, in military attire, advancing right, holding spear in right hand and shield in left hand.
Reverse script
Latin
Reverse lettering
MAR
PROP (Translation: Mars Propugnatori. Mars, the defender.)