Diva Faustina Senior. Died AD 141. Æ Sestertius (29mm, 21.21g, 5h). 
Draped bust right 
Pietas standing left, sacrificing from raised hand over flaming altar at feet left, holding box of incense. 

RIC III, 1127 (Pius); Cohen 125


Courtesy of LAC London Ancient Coins Ltd Auction 4, May 2011.