Joseph Bonomi the Younger into debt and was eventually happy to accept a modestly paid commission to accompany Robert Hay on an expedition, via Malta, to Egypt in 1824. This began a lifelong interest in Egyptology. From 1824 to 1826, he was a member of Hay's expedition where he sketched many antiquities. At Abu Simbel in 1825, Bonomi – responding to Hay's demands for great accuracy – devised a drawing frame (a viewfinder-type device equipped with a sight and a string or wire grid) to help them draw the temples' interior decorations. The expedition then moved on to Kalabsha, where Bonomi laboured to produce
Abu Simbel temples There are depictions of Ramesses and Nefertari with the sacred boats of Amun and Ra-Harakhti. This hall gives access to a transverse vestibule in the middle of which is the entrance to the sanctuary. Here, on a black wall, are rock cut sculptures of four seated figures: Ra-Horakhty, the deified king Ramesses, and the gods Amun Ra and Ptah. Ra-Horakhty, Amun Ra and Ptah were the main divinities in that period and their cult centers were at Heliopolis, Thebes and Memphis respectively. It is believed that the axis of the temple was positioned by the ancient Egyptian architects in such