IMP
GALLIENVS P AVG (Translation: Imperator Gallienus Pius Augustus. Supreme commander (Imperator), Gallienus, the pious, emperor (Augustus).)
Reverse description
Gallienus, sacrificing at altar out of patera in right hand and holding short sceptre in left hand.
Reverse script
Latin
Reverse lettering
P M TR
P VII COS (Translation: Pontifex Maximus, Tribunicia Potestate Septima, Consul. High priest, holder of tribunician power for the seventh time, consul.)