1. Princeton University, Islamic Manuscripts Garrett no. 538H Bookmark DS ID: DS2302 Title: Majmūʻah ḥisābīyah Date: not after 1842
2. Free Library of Philadelphia, Lewis T197 Bookmark DS ID: DS5987 Title: Computus and Calendar Place: undetermined Date: 1000-1500
3. Free Library of Philadelphia, Lewis T198 Bookmark DS ID: DS5988 Title: Computus and Calendar Place: undetermined Date: 1000-1500