VViews, I can't post to your interesting thread because it's in the library section, but the last image you posted reminded me of something I'd seen.
Here is a physical embodiment of the curvy shapes in the drawing you posted, from an astrolabe designed in the 15th century by Fusoris. This example (I don't know if it's a reproduction or an original) is in the Adler Planetarium and Astronomy Museum:
![[Image: 1_c2b0_messahallach_tractatus_de_-_btv1b9077005g.jpeg]](https://voynichviews.files.wordpress.com/2016/11/1_c2b0_messahallach_tractatus_de_-_btv1b9077005g.jpeg)
![[Image: Fusoris%20Front%2012M.JPG]](http://www.astrolabes.org/pages/Fusoris%20Front%2012M.JPG)
Here is a physical embodiment of the curvy shapes in the drawing you posted, from an astrolabe designed in the 15th century by Fusoris. This example (I don't know if it's a reproduction or an original) is in the Adler Planetarium and Astronomy Museum:
![[+]](https://www.voynich.ninja/images/collapse_collapsed.png)