The first work in the collection completed on the last Friday of Jumādá al-Ūlá of the year 878 October 1473 in Jāmiʻ al-Azhar. The other works, some of which are dated, all from 15th century except the last work, which appears to be from 17th-18th century.MS Arab 389. Houghton Library, Harvard University.In Arabic.