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Keywords
- Astronomical instruments[remove]11
- Early works10
- New Jersey--Princeton10
- Manuscripts, Arabic9
- Almucantar6
- Quadrants (Astronomical instruments)6
- Astrolabes5
- Manuscripts, Turkish5
- Astronomy, Arab4
- Islamic Empire3
- Manuscripts, Persian3
- Timekeeping3
- Qiblah2
- Seventeenth century2
- Watermarks2
- diagrams2
- tables (documents)2
- Arabic alphabet1
- Arabic language--Grammar1
- Arabic language--Rhetoric1