2. University of Pennsylvania, LJS 295 Author: Safi al-Din al-Urmawi Place: Iran Date: A.H. 815 (1412)
3. University of Pennsylvania, LJS 400 Title: Sharḥ-i Zīj Gūrgānī Author: Ali Qushji Place: Iran Date: A.H. 899 (1493-1494)
4. University of Pennsylvania, LJS 49 Title: Tashrīḥ-i Manṣūrī Author: Manṣūr Ibn-Muḥammad Ibn-Aḥmad Place: Persia Date: A.H. 813 (1411)