Nero and Drusus Caesar, with Agrippina Junior, Drusilla, and Julia. Died 31 and 33 AD. AE24 of Apamea, Bithynia. 

DRVSVS NERO CAESARES DD, bare heads of Drusus and Nero Caesars 
facing each other. 
AGRIPPINA DIVA DRVSILLA IVLIA, C I C in exergue, Gaius' three 
sisters standing facing: Agrippina (as Ataraxia-Securitas) 
leaning on column, holding cornucopiae, placing hand on Diva 
Drusilla (as Homonoia-Concordia), holding phiale and 
cornucopiae, and Julia (as Tyche Soterios-Fortuna Redux) 
holding rudder and cornucopia. 

RPC Supp. 2, 2014; RecGen p. 252, note 2; 

Very rare, only second example to appear recently at auction. 
A similar example sold in Rauch 73 (17 May 2004), lot 445 for €5200. 

Used with permission of CNG (cngcoins.com), Jan. 2009, Triton XII,
lot 546.