1. University of Pennsylvania, LJS 407 Title: Astronomy Author: Nasir al-Din al-Tusi Date: [between 1500 and 1599?]
2. 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.
3. Columbia University Rare Book & Manuscript Library, MS Or 11 Title: Sī faṣl Author: Nasir al-Din al-Tusi Date: 16--?-17--?
4. 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--?