Lucilla AE Sestertius. 161-166 AD. Rome. 

LVCILLAE AVG ANTONINI AVG F, draped bust right
HILARITAS S-C, Hilaritas standing left, holding long palm
 branch and cornucopiae. 

RIC III 1742 var (obv. legend). 

RIC lists the long legend only as LVCILLA AVG etc. 
without the E). Unpublished ? or simply an error in RIC?

Used with permission of Roma Numismatics
October 2009.