George Margoliouth, Catalogue of the Hebrew and Samaritan Manuscripts in the British Museum (London: British Museum, 1935), part 4, by Jacob Leveen, pp. viii–ix. Leveen, although reversing Shapira’s initials, confirms, “It was this bookseller who offered to the Museum fragments of the Pentateuch on leather purporting to be of extreme antiquity, but afterward discovered to be forgeries” (p. ix n. 1).