Cod.: paper, 269 ff. (modern foliation with Arabic-European numerals in pencil; an earlier foliation with Hindu-Arabic numerals, according to which the current ff. 125–157 were originally bound at the beginning of the codex; another older foliation in the upper left corner of rectos, often erased or cut off, from which Hogendijk concluded that the codex combined two earlier manuscripts; catchwords mostly trimmed). Four main hands. First hand (1r–72v): a rather sloppy black naskh, only partially dotted, no hamzas or shaddas, diagrams in black and red. Second hand (75v–124v): clear naskh in black with enlarged book titles, headings and diagram points in the main text in red, and black lines and red points in the diagrams. Third hand (125v–157v): very clear and fine naskh, with headings and diagrams in red. Fourth hand (158r–269v, including the Ptolemaic sections): sloppy naskh in black, only occasionally dotted; numerous diagrams in black and red, empty space for a further diagram (213v). Yet another, larger naskh hand in black, partially dotted, with diagrams in red on ff. 73r–75r. An inserted slip of paper with additional figures (f. 101^bis). Codex in very good condition with only minor moisture stains. Dimensions: unknown; 18–30 lines per page (Ptolemaic sections: around 20 lines per page). Simple brown leather covers, doublures decorated with ebru paper. Type III binding.

Cont.: mathematics (especially geometry), astronomy. — Index: Muḥammad b. Abī Jarāda, Sharḥ Kitāb al-Ukar li-Manālāwūs (1r–72v); anonymous, Ziyādat ashkāl qaws al-zāwiya (73r–75r); anonymous fragment (75v); Muḥammad b. Qāsim b. Faḍl al-Iṣfahānī, Talkhīṣ al-Makhrūṭāt (76r–124v); al-Ḥasan Ibn al-Haytham, Maqāla fī Tamām Kitāb al-Makhrūṭāt (125v–149r); anonymous fragment on geometry (149r–v); Maimonides, Ḥawāshī ʿalā baʿḍ ashkāl Kitāb al-Makhrūṭāt (150v–157v); anonymous, Ḥawāshī ʿalā Kitāb al-Makhrūṭāt (158r–182v); Kamāl al-Dīn b. Yūnus, reply to a question on geometrical propositions (183r–184v); Kamāl al-Dīn b. Yūnus, Risāla fī l-Burhān ʿalā ittiḥād al-muqaddima allatī ahmala-hā Arshimīdis fī tasbīʿ al-dāʾira wa-kayfiyyat dhālika (184v–186r); Ptolemaica (187r–210r); Ptolemaica (211r–223v); Athīr al-Dīn al-Abharī, Fawāʾid multaqaṭa min Kitāb al-musammā Ghāyat al-idrāk fī dirāyat al-aflāk (224r–229r); Athīr al-Dīn al-Abharī, Muʾāmarat aʿmāl dhakara-hā fī hādhā l-Majisṭī (229r–234r, extracts from his Talkhīṣ al-Majisṭī); Athīr al-Dīn al-Abharī, Risāla fī Birkār al-quṭūʿ, a redaction of Kamāl al-Dīn b. Yūnus, Risāla fī Birkār (234v–237v); Abū Naṣr b. ʿIrāq, Risāla fī Ḥall shubha ʿaraḍat lahu fī l-maqāla al-thālitha ʿashra min Kitāb al-Uṣūl (238r–239r); Abū Naṣr b. ʿIrāq, Risāla fī l-Jawāb ʿan masāʾil handasiyya saʿlta ʿanhā (239v–245r); Abū Naṣr b. ʿIrāq, Risāla fī Maʿrifat al-qusī l-falakiyya bi-ṭarīq ghayr ṭarīq maʿrifati-hā bi-l-shakl al-qaṭṭāʿ wa-l-nisba al-muʾallafa (245v–249r); Kamāl al-Dīn b. Yūnus, Masāʾil (249v–254v); Kamāl al-Dīn b. Yūnus, Risāla fī Bayān muqaddimatayn muhmalatay al-bayān istaʿamala-hā Ablūniyūs fī awākhir al-maqāla al-ūlā min al-Makhrūṭāt (255r–256r); Kamāl al-Dīn b. Yūnus, Masʾila ukhra lahu (256r–257r); Ptolemaica (257v–258v); Abū Saʿd b. Sahl, al-Burhān ʿalā anna l-falak laysa fī ghāyat al-ṣafāʾ (258v, only the title); Abū Sahl al-Qūhī (or: al-Kūhī), Ziyādāt fī l-Muʿṭayāt 〈li-Uqlīdis〉 (259r–267r); unknown, al-Ashkāl al-mujassama allatī tuḥīṭu bi-hā kura tanqasimu awwalan qismayn al-musāwī al-qawāʿid wa-ghayr al-musāwī al-qawāʿid (267v–269v, acephalous). Blank: 150r, 186v, 210v.

Bibl.: Muḥammad Taqī Dānishpazhūh, Fihrist-i mīkrūfīlmhā-yi Kitābkhāna-yi Markazī-yi Dānishgāh-i Tihrān, vol. I, Tehran: Dānishgāh-yi Tihrān, 1969 (1348 H.S.), pp. 521–523; Paul Kunitzsch, Ibn aṣ-Ṣalāḥ. Zur Kritik der Koordinatenüberlieferung im Sternkatalog des Almagest. Arabischer Text nebst deutscher Übersetzung, Einleitung und Anhang, Göttingen: Vandenhoeck & Ruprecht, 1975, p. 29; Jan P. Hogendijk, Ibn al-Haytham’s Completion of the Conics, New York: Springer, 1985, pp. 3, 123, and 127–129; Ramazan Şeşen, Mukhtārāt min al-makhṭūṭāt al-ʿarabiyya al-nādira fī maktabāt Turkiyā, Istanbul: İslām Tarih, Sanat ve Kültürünü Araştırma Vakfı (İSAR), 1997, pp. 102, 110, 178, 182, 217–218, 268–269, 792, andd 827. Islamic Scientific Manuscripts Initiative: https://ismi.mpiwg-berlin.mpg.de/codex/165157; Türkiye Yazma Eserler Kurumu: https://portal.yek.gov.tr/works/search/full?&key=17201706&linked_field=barcode.