Video Orientation to the University of Pennsylvania Library's LJS 388, an astronomical textbook arranged in two chapters with an introduction and containing five diagrams.

Copy completed on 29 Rabīʻ al-Awwal 786 (29 May 1384, colophon, f. 19v).

Digital copies and a full record are available through Franklin: https://franklin.library.upenn.edu/catalog/FRANKLIN_9950681223503681
Record on Internet Archive with link to PDF: https://archive.org/details/ljs388