No text, but a visual code

[Linda]

Which of the gazillion images that i had to wait five minutes to load, much less scroll through, are you referring to in the first link?

The second i could see but i do not know the differences you are referring to re gallows and no gallows

Ok having had more time to scroll, it could only be Phases of the moon, from Ramon Llull, Tractatus novus de astronomia (New Treatise on Astronomy), Mallorca, c. 1400–1450.

So you think this image or one like it was transformed into a code where the c's are multiplied to denote various phases of the moon. 

I still do not understand the benches part. 

the benches come out joining the nearby moons, the waxing and waning moons. The plain bench is formed at the full moon and when it is close, and the bench with a top stroke when it is a new moon or close.