Twelve years ago I, too, found this
portrait irresistible. See attached. The
reverse is of a kind, not limited to
Cappadocia, that is meant to represent a traditional cult image of
Athena (so they make her very angular).
•• 04 IV 00 AR
drachm.
Asia Minor,
Cappadocia. Ariobarzanes I
Philorhomaios (95-63 BC).
Rev. Athena; Basileos Ariobarzonou Philorhomaiou (in
exergue) and regnal year, which seems to be 31.
Cf. Sear GCV 7302.
Like you, I did not have (and haven't even now)
good references for these.
Pat L.
P.S. Though my coin may be shinier, yours has a finer
portrait.