Augustus AV aureus. Struck 19-18 BC in Pergamum, Mysia. 7.92 g.

AVGVSTVS, bare head right.
No legend, Sphinx, with wings raised, sitting right.

RIC I 512 corr. (obv description); BMCRE 682; Paris 973; Cohen 333; Calico 156.

Very rare.
With permission of Numismatica Ars Classica auction 84, lot 882, March 2015.