Mysia, Pergamum. Philetairos. 158-138 B.C. AE ( Bronze. 4.91 g. 16 mm). Struck 158-138 B.C.
Head of Athena right wearing crested Corinthian-style helmet
Rev: [Φ]ΙΛΕΤΑΙΡ[ΟΥ]/ Serpent standing erect to right, M in left field.
SNG BN 1650 ff.; SNG Cop. 343 ff..