Grzegorz, you comment led me to some strange ideas.
Who was
Zeus? The
senior of 12 Olympic gods, The Chairmen.
Jesus also was a chairmen. The God Pantocrator enthroned - The Chairmen.
For
Christian people, who forgot the meaning of the image, it may be
Christianity-consistent, with a
dove (by the way, indeed, on some coins the bird
resembles a
dove rather than an
eagle). As for the
horse, it could be interpreted as one
of horses of the Apocalipsis...