Image rights: wildwinds.com

Seleukus VI, c. 97-94 BC, AR tetradrachm, (14.65g) Seleucia ad Calycadnum mint. ca. 97-95 BC.

Diademed head right.
BASILEWS SELEYKOY EPIFANOYS NIKATOPOS, Athena Nicephorus standing left, holding Nike, spear and shield, monogram and ZH. 
Type Sear 7177; Houghton KME 59-89