1. Columbia University Rare Book & Manuscript Library, MS Or 36 DS ID: DS6488 Title: Badīʻ al-ḥisāb Author: Rajab ʻAlī Beg Surūr Place: Lahore Date: 1851.
2. Columbia University Rare Book & Manuscript Library, MS Or 287 DS ID: DS6577 Title: De sphaericis Author: Theodosius of Bithynia Place: Tabriz Date: 1895.