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Keywords
- Astrolabes[remove]44
- Early works40
- New Jersey--Princeton36
- Manuscripts, Arabic32
- Astronomy, Arab26
- Manuscripts, Persian18
- Islamic Empire17
- Astronomical instruments12
- Quadrants (Astronomical instruments)12
- Almucantar8
- History8
- Manuscripts, Turkish8
- Eighteenth century7
- Fifteenth century7
- Sources7
- Watermarks7
- Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274. Bīst bāb dar maʻrifat-i asṭurlāb7
- Timekeeping6
- Autographs5
- Calendars5