10 BC. and later, Augustus, imitative As (halved Dupondius), irregular Gallic(?) mint, cf. RPC 523.
Augustus, irregular Gallic(?) mint, 10 BC. and later,
imitative Æ As (halved Dupondius) (15-24 mm / 4,12 g),
Obv.: IM[P / DIVI F] , head of Agrippa (left, with rostral crown) [and Augustus (right, bare)], back to back.
Rev.: COL - [NEM] , crocodile r., chained to a palm; left above palm, wreath with long ties to r.
cf. RIC I, 52, 155-8 (C) ; cf. RPC I, 154, 523 .
The value of this series was in fact indicated by the presence of the number of heads on the obverse. One head on a halved coin meaning the value of an as.
The weight-peaks for regular dupondii of this issue are 14 - 11 g (RIC), 12,50 g (RPC I).