Tom Cederlind on ebay:Faustina II As depicting Diana 

Faustina II As depicting Diana
FAUSTINA II wife of Marcus Aurelius (A.D. 161-180). -. Bronze As (26mm) minted under Antoninus Pius (138-161 AD) (13.36 gm). . R: Diana standing holding arrow and resting on bow. cf. RIC (AP) 1405c. An early portrait in fine style, VF.