Audoleon-style Celtic silver tetradrachma

Audoleon-type Celtic silver tetradrachm. 2nd century BC, Eastern Celts, Danube region. An imitation of a coin of King Audoleon of Paeonia. Obverse: portrait of Zeus facing right with a laurel wreath. Reverse: A male figure sitting on a horse. AVΔOΛEON-TOΣ. Weight: 13.25 grams. 23 x 22 mm. Fine