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
Ramesses II As well as the temples of Abu Simbel, Ramesses left other monuments to himself in Nubia. His early campaigns are illustrated on the walls of Beit el-Wali (now relocated to New Kalabsha). Other temples dedicated to Ramesses are Derr and Gerf Hussein (also relocated to New Kalabsha). The tomb of the most important consort of Ramesses was discovered by Ernesto Schiaparelli in 1904. Although it had been looted in ancient times, the tomb of Nefertari is extremely important, because its magnificent wall painting decoration is regarded as one of the greatest achievements of ancient Egyptian art. A flight of steps