f17r multispectral images

[Koen G]

Maybe the marginalia are pen tests as I've seen someone suggest. So the author copied single words or phrases from somewhere and sometimes drew an illustration, they're not supposed to make sense in conjunction.

That was probably me. The thing with pen trials as a phenomenon is that they are common in manuscripts, but people don't know about them. It's mostly Erik Kwakkel who wrote about them: You are not allowed to view links. Register or Login to view. .  There are various kinds: a scribe could write a random phrase they had in their mind, just to test their pen or their ink. Often they would also write the alphabet. Or "I am testing my pen". Stuff like that.

If they are pen tests, they must be of the first kind (scribe wrote whatever came to his mind), which may still make them interesting. 

When I see one of those pages with pen trials like You are not allowed to view links. Register or Login to view., I can't help but be reminded of f116v.

Kwakkel includes the following example as the most extreme case he has seen. Note that it includes a number of familiar items: doodles of human figures. Disjoint phrases (or at least words in a phrase-like line). Maria.