Francis Frith 1862 Title page for "Egypt, Nubia, and Ethiopia. Illustrated by One Hundred Stereographs, taken by Francis Frith for Messrs. Negretti and Zambra" (London: Smith, Elder and Co, 1862)
The following sun-pictures of the ancient ruined buildings on the banks of the Nile were made for Messrs. Negretti and Zambra by Mr. Frith, during a visit to Egypt, Nubia and Ethiopia, in the years 1859, 1860. They are one hundred in number. Every view is of two pictures almost the same, but not quite so. They are taken by two instruments at the same time, and not quite from
the same spot. One is a view as seen by the right eye, and one as seen by the left eye.