Celtic Imitation of Thasos Types. Tetradrachm; Celtic Imitation of Thasos Types; 1st Cent. BC, Tetradrachm, 17.04g. Göbl-OTA Tf. 47. Obv: Stylized head of Dionysus l. Rx: Stylized Herakles standing l.this coin is struck with a wonderfully creative imitative obverse and reverse. EF