Quire 13. Text first. Pictures after.

[Koen G]

Sorry, it is You are not allowed to view links. Register or Login to view. that has the slanty diagram.

Ah, I see what you mean. I guess we're assessing likelihoods here, and to me it seems extremely unlikely that the text came first. Look at the bottom central curve in the margin. This is what you get when text hugs an irregular image. Why would they do that instead of just making a regular straight margin like they do elsewhere? Also the text above the bottom pool is leaving gaps. 

And the place where the drawing is slanted, which I indicated with orange arrows. Look how the text block is compacted there. This is not just slanted text, it is text receding from something that's already there. 

   

So what is more likely? All of the above, or simply the artist (having a blank page at their disposal) drawing a slanted pool?