Faustina II AV aureus. Rome mint: AD 176-180. 7.32 g. 

DIVAE FAVSTIN AVG MATR CASTROR, veiled and draped bust right.
CONSECRATIO, funeral pyre surmounted by biga. Venus standing left, holding apple and sceptre.

RIC III 748 var (bust type); Biaggi 925 (this coin). Not in Cohen or BMC.
Extremely rare, apparently only the second specimen known.

With permission of Numismatica Ars Classica, Apr. 2008,