Mysia, Pergamum. Philetairos. 158-138 B.C. AE 15 (14.9 mm, 3.28 g, 12 h). Struck 158-138 B.C. Head of Athena right wearing crested Corinthian-style helmet / [Φ]ΙΛΕΤΑΙΡ[ΟΥ], king's name vertically downwards to right of coiled serpent standing erect to right, M in left field. SNG BN 1650 ff.; SNG Cop. 343 ff.. Near VF, skimpy flan tends to crowd devices and name.