Bare bust right / Greek legend BAΣIΛEΩΣ EYKPATIΔOY (of King Eucratides), caps of the Dioskuri and palms, IAI monogram at lower left. 10mm, 0.50 grams. Balkh mint?. Bopp. Series 3; SNG ANS 469. SKU X3458-53456

Fourees are contemporary fakes, struck in base metal sandwiched between layers of silver to pass it as a silver coin into circulation. 

Eucratides I  (reigned 172/171–145 BC), was one of the most important Greco-Bactrian kings. Eucratides overthrew the Euthydemid dynasty of Bactria (possibly killing Demetrius) and restored the Diodotid dynasty of Diodotus I, allied to the Parthian Empire. Eucratides fought against the easternmost Hellenistic and Indian rulers in India, holding territory in the Indus and as far as Barigaza until he was finally defeated by Menander and pushed back to Bactria.