Nerva AE Dupondius. 97 AD. 

IMP NERVA CAES AVG P M TR P COS III P P, radiate head right.
LIBERTAS PVBLICA S-C, Liberty standing left, holding pileus and sceptre. 

RIC II 87; Cohen 116; Sear 3059.

Courtesy of TimeLine Originals (www.time-lines.co.uk), Jul. 2010