2. University of Pennsylvania, LJS 407 Title: Astronomy Author: Nasir al-Din al-Tusi Date: [between 1500 and 1599?]
3. Columbia University Rare Book & Manuscript Library, MS Or 15 Title: Sharḥ-i ṣad kalimah-i Baṭlamyūs Author: Nasir al-Din al-Tusi Place: India Date: between 1650 and 1799?
4. Columbia University Rare Book & Manuscript Library, MS Or 10 Title: Bīst dar maʻrifat-i usṭurlāb Author: Nasir al-Din al-Tusi Place: Iran Date: 1299.
5. Columbia University Rare Book & Manuscript Library, MS Or 11 Title: Sī faṣl Author: Nasir al-Din al-Tusi Date: 16--?-17--?
6. Columbia University Rare Book & Manuscript Library, MS Or 288 Title: Bīst bāb dar maʻrifat-i usṭurlāb Author: Nasir al-Din al-Tusi Date: 17--? - 18--?