Anonymous and untitled treatise on mathematics containing numerous diagrams. The copy was completed at Ajmer (أجمير) on Tuesday 10 Rabī‘ I 1041/7 October 1631 by Muḥammad Amīn ibn Mirzā Muḥammad Faḍl Allāh Kāshānī (محمد أمين بن مرزا محمد فضل الله كاشاني; see colophon, f. 14v, lines 15-21 and se...