Drawing/watercolor of an Assyrian King adoring two gods, each of whom are "riding on" beasts associated with them. Note that the gods are actually standing on a "firmanent" which in turn is supported by the beast's back- rather like Ezekiel's notion of the Cherubim supporting a "firmanent" above their heads that God's throne sits upon.
(p.10. J.E. Curtis & J.E. Reade, Editors. Art and Empire, Treasures From Assyria in the British Museum. Harry N. Abrams. New York. 1996. ISBN 0-8109-6491-0)