Galba AE sestertius, 34.8 mm, 24.80 g. November 68 AD. 

Obv: SER GALBA IMP CAES AVG TR P, laureate head right. 
Rev: LIBERT AVG S-C, Libertas standing left, holding pileus and vertical rod.

RIC 436; Cohen 100.
Scarce.

Ebay sale by I-lgoldbergcoinsandcollectibles, Sept. 2005.