Pax, draped, standing left (or right?), holding branch in right hand and cornucopiae in left hand.
Reverse script
Reverse lettering
P M TR
P III COS III P P (Translation: Pontifex Maximus, Tribunicia Potestate Tertia, Consul Tertium, Pater Patriae. High priest, holder of tribunician power for the third time, consul for the third time, father of the nation.)