Celtic Coinage. Celtic, Danubian Region. AR Tetradrachm, imitating Philip III of Macedon, circa 2nd cent. BC. Uncertain Tribe, lower Danube area. Obv. Highly degraded head of Herakles right. Rev. Zeus Aëtophoros seated left. Lanz 920-32. CCCBM I 195-8. AR. g. 14.19 mm. 28.00 About VF.