Ariobarzanes I. Philoromaios. 95-63 BC, AR Drachm. 17mm, 4.15 g. Dated Year 16. 

Diademed, mature head of the king right.
BASILEWS ARIOBARZANOY to right and left, FILORWMAIOY below, 
Athena standing left, holding Nike, spear and shield. 
T in left field. (Date IS in ex., off flan)

Simonetta 26 var (no A in right field). 

With permission of Heritage World Coin Auctions, Sept. 2012.
This coin must be a var of Simonetta 26 and not Simonetta
7 or 8 because of the mature head.