The most striking works of art from the Indus citiess are small steatite seals carved with a copper burin coaded with alkali and baked to glaze the surface.  Animals depicted on seals are the Indian humped bull, a unicorn, elephant, bison , rhinoceros, and crocodile as well as two- and three- headed animals of indeterminable mythical type.  Some seals also appear to have religious of symbolic significance beyond that of the animals. on portrays a figure, perhaps with three heads, seated cross-legged in a yogic position of meditation with two deer beneath his seat and a few pictograms engraved along the upper edge.  Resonating with this image are later images of preaching Buddha which similarly placed deer to identify the site as deer park where his first sermon took place.  The head dress of curved horns is a surrounded by animals has led to the suggestion that the figure is a prototype of Shiva in his aspect of Lord of Beasts.