A capital with bull engraving.
There were 3 typical forms for the capital of a colunm :
bull/eagle/lion
each one in a sitting position,not one but double( mirrored considering a vertical axis in its back),
the engravings are made in such an abstractstyle
we always took pleasure in watching them :
great details, curves, lines, parts...
I'm sorry I don't have a more detailed picture to show you, to SEE what I say...
but you can see this link :
http://www-oi.uchicago.edu/OI/MUS/PA/IRAN/PAAI/PAAI.html
to see & to be charmed more...