IMP
GALLIENVS P F AVG (Translation: Imperator Gallienus Pius Felix Augustus. Supreme commander (Imperator), Gallienus, the pious, the fortunate, emperor (Augustus).)
Reverse description
Mars, nude, and Rhea Silvia, draped.
Reverse script
Latin
Reverse lettering
TRIB
POT COS P P (Translation: Tribunicia Potestate, Consul, Pater Patriae. Holder of tribunician power, consul, father of the nation.)