*k T-S AS 144.97 *t Geometry *s 14.3 x 23; 16 lines + marginalia *m Paper; 2 leaves (bifolium); torn, stained, holes *l Judaeo-Arabic; Arabic *c Beginning of Book 1 of Euclid's Elements according to the revised translation of Ṯabit ibn Qurra al-Ḥarrānī. On fols 2r-v are geometrical diagrams with explanations in Arabic script. *e With geometrical diagrams and Arabic captions. In the margins are references to notions discussed in the body of the text.