In their travels to Egypt, Agnes S. Lewis and Margaret D. Gibson were also able to buy among other unique manuscripts in Christian Palestinian Aramaic as e.g. an hagiographic palimpsest manuscript "The Forty Martyrs of Sinai, and Eulogios the stone-cutter" from the 6th–7th century (1906) overwritten by a Christian Arabic text (8th century); a nearly complete eleventh-century lectionary (1895) of Christian Palestinian Aramaic with noteworthy biblical pericopes in 1895 and later 1905 some of the missing folios from a German collector (Westminster College, Cambridge); several leaves under Syriac Christian homilies where Agnes S. Lewis detected separate 7th and 8th century Qu'ranic manuscripts, which she and Alphonse Mingana dated as possibly pre-Uthmanic. These palimpsest folios were lent to the exhibition “Internationale Ausstellung für Buchgewerbe und Graphik" in Leipzig 1914, and due to the outbreak of the First World War they were only returned in 1936 after the successful intervention by Paul Kahle. They collected about 1,700 manuscript fragments, now known as the Lewis-Gibson collection, including some formerly of the Genizah of the Bin Ezra Synagogue in Old Cairo. The sisters continued to travel and write until the First World War, and were behind other discoveries through acquisition, including that of an early Hebrew manuscript of Ecclesiasticus in the Cairo Genizah, identified by Solomon Schechter.