Augustus AV aureus. Struck 19-18 BC in Pergamum, Mysia. 22 mm, 7.89 g. 

AVGVSTVS, bare head left.
ARMENIA CAPTA, Sphinx, with wings raised, sitting right. 

RIC I 513; Vienna 56769; BM 197202011; Sutherland 1 in RN 1973.

Image courtesy of the Münzkabinett Vienna.