1. University of Pennsylvania, LJS 286 DS ID: DS604 Title: Taḥrīr Uṣūl al-handasah wa-al-ḥisāb Author: Nasir al-Din al-Tusi Date: A.H. 890 (1485)
2. University of Pennsylvania, Oversize LJS 491 DS ID: DS25662 Title: Hebrew text Place: Italy Date: between 1650 and 1750?