Antoninus Pius Sestertius. 153-154 AD. 

ANTONINVS AVG PIVS P P TR P XVII, laureate bust left
INDVLGENTIA AVG COS IIII S C, Indulgentia seated left holding 
patera and sceptre. 

RIC 914 note (bust type citing Santamaria Sale, lot 714, Nov. 1920).

With permission of cngcoins.com, Feb. 2006.