ASSEMANI, Giuseppe Simone. Bibliotheca orientalis Clementino-Vaticana in qua manuscriptos codices Syriacos, Arabicos, Persicos, Turcicos, Hebraicos, Samaritanos, Armenicos...recensuit...J.S. Assemanus . Rome: Propaganda Fide Press, 1719-28. 3 volumes in 4, 2° (365 x 230mm). Titles in red and black with engraved vignette, engraved frontispiece in volume I after Pietro Bianchi, a few engraved vignettes in the text, numerous examples of arabic and syriac printing, half-titles (frontispiece a little frayed at the margins, occasional light foxing and spotting). Early 19th-century vellum, black labels on spines, marbled edges (very lightly discoloured). FIRST EDITION. (4)