Nero, AE quadrans. Rome. AD 63.

NERO CLAV CAESAR AVG GER, Helmet right on column, round 
shield leaning against the column.
PON M TR P IMP PP, upright olive branch. (No SC)

RIC 129; WCN 338 (this coin). 
Very rare.

Sorry for the poor quality, but this is the only published 
example of this coin, scanned from MacDowall's WCN book. ("Western Coinages of Nero")