GRECO-BACTRIAN KINGDOM. Eucratides I the Great (ca. 170-145 BC). AR tetradrachm. (16.85gm, 33mm) Diademed, draped, and cuirassed bust right, wearing crested helmet adorned with bull's horn and ear / The Dioscuri on horses rearing right, holding palms and spears; monogram to lower right. Light Toned. Extremely Fine and very rare monogram.