Dipped Into The Oddity Box Once More | Afghan Silver Jital

It's already Sunday afternoon here in Australia.

Your coin is a "bull and horseman" silver jital of the Hindu kings of Kabul and Gandhara, in pre-Islamic Afghanistan. The top pic is the horseman, you can clearly see the horse, the rider, and the spear he's carrying. The bottom pic is upside-down, but the bull (with the typical Indian "hump" on its back) is also clearly visible. These coins were copied by several generations of rulers in Afghanistan and by neighbouring states from the period 750-1000 AD, with the design progressively getting more and more stylized. On the final coins in the series, issued by the early Islamic rulers, the bull is gone completely and the horseman is an extremely stylized doodle - see this thread for an example. There are a couple of examples of earlier types in this thread.

I think yours is one of the earlier types, circa 800-850 AD, and should be somewhere on this page, though I'm not familiar enough with the series to tell the various types apart with confidence.

It seems very similar to this piccy
http://www.zeno.ru/showphoto.php?photo=99164