Dupondius - Marcus Aurelius (IMP VIII COS III FELICITATI AVG P P S C; Neptune)
Obverse
Head of Marcus Aurelius, radiate, right.
Lettering: M ANTONINVS AVG GERM SARM TR P XXXI
Reverse
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.
Lettering: IMP VIII COS III FELICITATI AVG P P S C
Technical Details
Obverse Lettering
M ANTONINVS AVG GERM SARM TR P XXXI
Reverse Lettering
IMP VIII COS III FELICITATI AVG P P S C
Comments
Example of this type:
American Numismatic Society (ANS)
Source:
Online Coins of the Roman Empire (OCRE)