IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS V P P
ref.: RIC 586
ref.: RIC 1404(b)
ref.: RIC 12.
The dupondius (Latin two-pounder) was a brass coin used during the Roman Empire and Roman Republic valued at 2 aes (1/2 of a sestertius or 1/8 of a denarius).