158-138BCE Ancient Greece, Pergamon (Mysia) AE16 of King Philetairos - Athena & Snake

Obverse: Head of Athena right wearing crested Corinthian-style helmet.

Reverse: ΦΙΛΕΤΑΙΡΟY. King's name vertically downwards to right of coiled serpent rising; monogram to left

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Weight: 3.13g

Diameter: 16mm