This "panel of signs features images of a bull’s head on a short pole followed by two back-to-back saddlebill storks with a bald ibis bird above and between them. This arrangement of symbols is common in later Egyptian representations of the solar cycle and with the concept of luminosity" (https://news.yale.edu/2017/06/20/yale-archaeologists-discover-earliest-monumental-egyptian-hieroglyphs).