Bifolio as a functional unit?

[Aga Tentakulus]

   

@Lisa
I have no idea why the translator wrote ‘leaflets’; I mean the foldouts.
But to explain my train of thought.
I'm starting from the rosette side (black).
Folded sideways (brown). Double book height and triple book width.
If I were to divide the sheet in the middle, I would get two identical sheets with 3 identical compartments (orange). (2x3).
If I cut two normal pages (green), I get one remaining page (red). (3x2). However, this is longer than page (green) but shorter than page (orange).

   

I think he picked up the wrong sheet here. (red) instead of the whole sheet (orange).
That's probably why he pushed the zodiac circles so close together. Too close for three rings.
Why not two rings and cut off the rest?
Was it a coincidence, or did he plan for all the fields to be the same size?

Just a thought experiment.


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