by Matthias Gerung (public domain)
http://commons.wikimedia.org/wiki/File:Ottheinrich_Folio288r_Rev6A.jpg
Because there's a little cogitator in all of us...
by Matthias Gerung (public domain)
http://commons.wikimedia.org/wiki/File:Ottheinrich_Folio288r_Rev6A.jpg