huntingtonlibrary:

upennmanuscripts:

The volvelles so far… The first eight volvelles in LJS 64, a manuscript copy of Illustrations to Georg von Peurbach’s Novae theoricae planetarum.

For more, search for volvelle on the UPenn Manuscripts Tumblr site (or just click here)

Heck yes to all of these volvelles.  HECK YES.