Kings of Macedon, Antigonos II Gonatas. 277/6-239 BC. AR Tetradrachm 32 mm. 17.2 gm. Amphipolis mint. Struck circa 274/1-260/55 BC. Obv: Horned head of Pan left, lagobolon over shoulder, in the center of a Macedonian shield Rev: BAΣIΛEΩΣ ANTIΓONOY, Athena Alkidemos advancing left, holding shield decorated with aegis, preparing to cast thunderbolt; crested Macedonian helmet to inner left, TI to inner right. Touratsoglou 10-2 ; SNG München 1074-5; SNG Alpha Bank 983; SNG Saroglos -Well centered.

Mathisen, notes that the fighting Athena was a traditional symbol of Pyrrhos, Antigonos’ vanquished enemy, and was adopted to emphasize the Macedonian king’s victory over his Epeirote challenger. Mathisen also believes Pan symbolizes Antigonos' victory over the Gauls, whose invasions had terrorized Macedon and Thrace for decades.