Denomination : AE dupondius.
Mint : Nemausus (modern day Nimes in France).
Date : The exact date of the striking of this issue is uncertain. Some references say 10 BC to 10 AD, but Sear (Roman Coins and Their values) makes a case for it having first been issued in 28/29 BC but being struck continuously over the next 30 or 40 years.
Reference : Sear-1730
Size : 24.9 x 25.5 mm. Weight : 12.73 grams.
Grade : F, brassy metal with darker backgrounds.
Obverse : Laurate heads of Augustus right and Agrippa left, with IMP above and DIVI F below.
Reverse : Crocodile right, chained to a palm tree, with a comet above, and COL NEM across (the M is off the flan to the right).