1. Free Library of Philadelphia, Lewis O 36 Title: Astronomical charts for Fatḥ-ʻAlī Shāh Qājār Author: Muḥammad Riz̤á Munajjim Bāshī and Anne Baker Lewis Place: Iran
2. Free Library of Philadelphia, Lewis O 88 Title: Haza rūznāme-yi Dārendevī Author: Muḥammad ibn Ismāʻīl Dārendevī Place: Istanbul
3. University of Pennsylvania, Ms. Coll 390, Item 654 Author: Nīlakaṇṭhabhaṭṭa Date: circa 1700-1850.
5. University of Pennsylvania, Ms. Coll 390, Item 1812 Title: Līlāvatī Author: Bhāskara II Date: circa 1700-1850.