About the binding(s?) and missing folios

[Hider]

Another possibility is that the Painter noticed that the drawing of You are not allowed to view links. Register or Login to view. extended into f40r, and thus opened the book on that page and painted those bits.  It seems that the paint on You are not allowed to view links. Register or Login to view. stops a hair before the gutter, and the paint on You are not allowed to view links. Register or Login to view. does not quite match:

But note that both images are somewhat distorted right next to the gutter, because of the curvature of the vellum.

All the best, --stolfi

In the photograph, the seams interfere with proper perception. A visual examination of the original would undoubtedly resolve this issue.