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Keywords
- Astrolabes[remove]35
- Early works32
- Manuscripts, Arabic32
- New Jersey--Princeton28
- Astronomy, Arab20
- Astronomical instruments12
- Manuscripts, Persian12
- Quadrants (Astronomical instruments)12
- Islamic Empire9
- Almucantar8
- Timekeeping6
- Watermarks6
- Eighteenth century5
- Manuscripts, Turkish5
- Autographs4
- Geometry4
- Mathematics, Arab4
- Qiblah4
- Time measurements4
- diagrams4