1. Or 1560/2 Reference (shelfmark): Or 1560/2 Title: Risālah al-zubdah fī al-hayʾah Scope & Content: Author: Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274 VIAF ID: 12392936 Subject: Astronomy, Arab--Early works to 1800 Collection Area: Oriental Manuscripts Languages: Arabic Date Range: 1054 Extent: 1 item