M
ANTONINVS AVG GERM SARM TR P XXXI (Translation: Marcus Antoninus Augustus, Germanicus, Sarmaticus, Tribunicia Potestate Prima Tricesima. Marcus [Aurelius] Antoninus emperor (Augustus), conqueror of the Germans, conqueror of the Sarmatians, holder of tribunician power for the 31st time.)
Reverse description
Galley with three or four rowers, facing left; on the stern, Neptune, standing left, his foot on a rock, holding trident and dolphin or aplustre.
Reverse script
Latin
Reverse lettering
IMP
VIII COS III FELICITATI AVG P P S C (Translation: Imperator Octavum, Consul Tertium, Felicitati Augusti, Pater Patriae. Senatus Consultum. Supreme commander (Imperator) for the eighth time, consul for the third time, to the good fortune of the emperor (Augustus), father of the nation. Decree of the senate.)