Nero. AE Quadrans. Rome. 63 AD. 

NERO CLA CAE AVG GERM, Helmet right on column against 
which on the right leans a round shield bearing 
gorgoneion, behind, a spear slanting upwards to right

PM TR P IMP PP, Upright olive branch. 

RIC I 126; BMC 292; WCN MacDowell 340. Rare (R2).

Courtesy of Roma Numismatics, Feb, 2010