Al-'Amal bi-al-Rub' al-Kamil [Treatise on the Perfect Quadrant].
Istanbul, [1920/21 CE =] 1339 H.
4to (172 x 212 mm). Ottoman Turkish manuscript on cream-coloured paper. 10 ff. 21 lines in black ink with occasional words in red. Contemporary marbled wrappers.
€ 600,00
Late Ottoman mathematical manuscript on the perfect quadrant, written in Constantinople. The scribe, a native of Iraq, gives his name as Mustafa bin Abd al-Wahhab bin Hassan al-Baghdadi.
Well preserved.

![Al-'Amal bi-al-Rub' al-Kamil [Treatise on the Perfect Quadrant].](https://inlibris.com/wp-content/uploads/2024/01/img-bn60768.jpg)
![Al-'Amal bi-al-Rub' al-Kamil [Treatise on the Perfect Quadrant]. – Bild 2](https://inlibris.com/wp-content/uploads/2024/01/img-bn60768-d.jpg)
![Al-'Amal bi-al-Rub' al-Kamil [Treatise on the Perfect Quadrant]. – Bild 3](https://inlibris.com/wp-content/uploads/2024/01/img-bn60768-b.jpg)
![Al-'Amal bi-al-Rub' al-Kamil [Treatise on the Perfect Quadrant]. – Bild 4](https://inlibris.com/wp-content/uploads/2024/01/img-bn60768-c.jpg)
![Al-'Amal bi-al-Rub' al-Kamil [Treatise on the Perfect Quadrant]. – Bild 5](https://inlibris.com/wp-content/uploads/2024/01/img-bn60768-a.jpg)
![Notizie, ed aventure veridiche di un viaggio intrapreso da una persona di condizione privata [...] di Urbino [...], sino a Costantinopoli; e del ritorno suo [...].](https://inlibris.com/wp-content/uploads/2021/03/img-bn37726-324x324.jpg)

![Khulasat al-Hisab [The Essence of Mathematical Sciences].](https://inlibris.com/wp-content/uploads/2025/08/img-bn67525-324x324.jpg)
![[Manuscript fragments of Ottoman mathematics].](https://inlibris.com/wp-content/uploads/2023/07/img-bn60770-324x324.jpg)