Ryskamp, Charles, ed. Eighteenth Report to the Fellows of the Pierpont Morgan Library, 1975-1977. New York : Pierpont Morgan Library, 1978, p. 288-289.
Watermark: none visible through lining.
Study for the lithograph executed by Louis Haghe, "Portico of the Temple of Edfou, Upper Egypt", no. 10 in Roberts' and William Brockedon's "Egypt and Nubia, London", I, 1846.