Celtic World. Celtic, Eastern Europe. AR Tetradrachm, imitation of Philip II of Macedon, 3rd century BC. D/ Laureate head of Zeus with crude features right. R/ 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.