Galba, Sestertius 68-69 AD, 

Obv: IMP SER GALBA AVG TR P, bare head right. 
Rev: SPQR - OB - CIV SER in three lines within oak wreath. 

RIC 259; bust var. of BM-117, Paris 120, C-297. 

With permission of Numismatica Ars Classica Zürich  (Auction 27 Lot 340, May 2004.