Bactria, Eucratides, 170-145 BC. Tetradrachm; Bactria, Eucratides, 170-145 BC; Tetradrachm, 16.59g. Bopearachchi-1D. Obv: Diademed, draped bust of king r. Rx: The Dioscuri on prancing horses r. both holding spears and palm branches; monogram in lower r. field.. VF