Keywords
- Watermarks19
- Sources18
- Stamps16
- Astronomical instruments15
- Quadrants (Astronomical instruments)15
- Astronomy13
- Sixteenth century13
- scientific illustrations (images)13
- Almucantar12
- Geometry12
- Islamic philosophy12
- Manuscripts, Turkish12
- Autographs11
- Blind tooled bindings11
- Arithmetic10
- Calendars10
- Islam--Doctrines10
- Timekeeping10
- Islamic calendar9
- Tadhkirah fī ʻilm al-hayʼah (Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad)9