Indo-Greek coin C295
Silver tetradrachm of King Euthydemus I (circ. 230-200 BC).
Reverse: Herakles resting on lion skin.
Bactria.
For details on the Bactrian-Greeks (or Indo-Bactrians) see Prabhu, as well as the coinage link at the bottom of that page.
14.5 gr.
Diameter: 28 mm.