GALLIENVS P F AVG (Translation: Gallienus Pius Felix Augustus. Gallienus, the pious and happy emperor (Augustus).)
Reverse description
Mars and Rhea Silvia.
Reverse script
Latin
Reverse lettering
TRIB
POT VIII COS III (Translation: Tribunicia Potestate Octava, Consul Tertium. Holder of tribunician power for the eighth time, consul for the third time.)