Watermark: Andrea Galvani of Pordenone. See Edward Heawood, Watermarks, Mainly of the 17th and 18th Centuries (Hilversum, 1950), p. 36 and no.860.Text rubricated; marginal notes and corrections in hand of copyist.Date and copyist's name in colophon: wa-kāna al-farāgh min kitābat hādhihi al-nuskhah yawm al-sabt muwāfiq arbaʻah ayyām khalat min Dhī al-Ḥijjah alladhī huwa min shuhūr sanat 1300 [6 October 1883] muwāfiq 26 Tūt sanat 1600 qibṭīyah ʻalá yad kātibihi Aḥmad Saʻd Luqbā[?] al-Marṣafī baladan al-Shāfiʻī madhhaban.Commentary by unidentified author on Tuḥfat al-ikhwān, a poem on timekeeping by Aḥmad ibn Qāsim.