Evidence for the appearance of the Pharaoh Khafre at Gizeh as having “negroid” cranial/facial features was provided by Baron Dominique Vivant Denon (1747-18250 who physically drew a picture of the Sphinx showing the pharaoh that was published in massive work, the Description de l’Egypt published in 20 volumes between 1809 and 1828.
It was reported that the head of the Egyptian government at that time Mamelukes and Arabs took potshots at Baron Denon and placed limits on the time he could record the tombs and objects in them. A photograph of this painting of the Sphinx at Gizeh is shown in the Section “The Reawakening of European Interest,” – “Napoleon’s Expedition to Egypt” shown on page 29, Lorna Oakes & Lucia Gahlin, Ancient Egypt: An Illustrated Reference to the Myths, Religions, Pyramids and Temples of the Land of the Pharaohs (Hermes House, Anness Publishing Limited Hermes House: New York, London), 2002.
So the nose was intact or in place at the time of Napoleon’s expedition to Egypt.
As for archaeological evidence with regards to the missing nose.
Farrakhan during the Million Man March in 1995 referred to Napoleon’s soldiers shooting it off because it represented black majesty.
However, the nearest thing to archaeological evidence points to remaining chisel marks on the Sphinx that are attributed to an 8th Century A.D. Sufi Muslem who considered the Sphinx to be blasphemous according to his religious faith as reported in the following article: