Celtic Coinage. Celtic, Danubian Region. AR Tetradrachm, imitation of Philip II of Macedon, 3rd cent. AD. Obv. Laureate head of Zeus with crude features right. Rev. Youth on horseback left, crowning horse with palm; spoked wheel countermark on horse; below, palm branch. Lanz 394-5. AR. g. 13.18 mm. 24.00 Lustrous. EF.