Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 64, Illustrations to Georg von Peurbach’s Novae theoricae planetarum. This manuscript was written in Italy between 1525 and 1575, in Latin, and it includes diagrams, many with moving parts, designed to accompany the work Theoricae novae planetarum by 15th-century Austrian astronomer Georg von Peurbach, who taught at the universities in Padua and Ferrara.

You can see the full online facsimile of this work in Penn in Hand and you can download all of the images and metadata from OPenn.  You can also download a copy of this video from ScholarlyCommons, the University of Pennsylvania’s open access institutional repository.