6231. Columbia University Rare Book & Manuscript Library, MS Or 11 Title: Sī faṣl Author: Nasir al-Din al-Tusi Date: 16--?-17--?
6232. Columbia University Rare Book & Manuscript Library, MS Or 23 Title: ʻAjīb al-masāʼil Date: 16--?], 1813.
6233. Columbia University Rare Book & Manuscript Library, MS Or 28 Title: De sphaericis Author: Theodosius of Bithynia Place: 18-- Date: 1800-1899
6234. Columbia University Rare Book & Manuscript Library, MS Or 45 Title: On astronomy, geometry, and arithmetic Date: 12--?-13--?
6235. Columbia University Rare Book & Manuscript Library, MS Or 50 Title: Bughyat al-ṭullāb ʻalá Munyat al-ḥussāb Author: Ibn Ghazi al-Miknasi Place: Morocco Date: 1747.
6236. Columbia University Rare Book & Manuscript Library, MS Or 51 Title: Sharḥ-i bīst bāb Author: Muẓaffar ibn Muḥammad Qāsim Gunābādī Place: Iran Date: 1786.
6237. Columbia University Rare Book & Manuscript Library, MS Or 53 Title: Sharḥ Khulāṣat al-ḥisāb Author: Jawād ibn Saʻd Jawād al-Baghdādī Place: India Date: 17--?
6238. Columbia University Rare Book & Manuscript Library, MS Or 65 Title: Ghāyat al-murād fī wifq al-aʻdād Author: Ṣūfī Kamāl Tustarī Place: Shiraz Date: 1462.
6239. Columbia University Rare Book & Manuscript Library, MS Or 67 - FOLIO/FLAT Title: Diwan Author: Mahmud Mirza Qajar Place: Iran Date: between 1820-1899?
6240. Columbia University Rare Book & Manuscript Library, MS Or 74 Title: Diwan Author: Hafez Place: Iran Date: between 17--? and 18--?].