Augustus and Agrippa AE Dupondius or As of Gaul, Nemausus. ca 10 BC - 10 AD.

IMP DIVI F, back-to-back heads of Agrippa, in rostral crown, and
 Augustus, in oak wreath.
COL NEM, crocodile chained to palm behind, wreath to left. SD
countermark (Pangerl 25) on crocodile's back. 

RIC 158; Cohen 10, RPC 524.

Contributed by Philo Finkle, March 2014.