(10-12-2025, 11:43 PM)ReneZ wrote: You are not allowed to view links. Register or Login to view.I do not know if sheets would be folded before writing (drawing and painting) or not, but that seems relevant here.
In case if this is in reply to my point that the scribe would write across the folds, folds are not really important here. What's important is that:
1) for each leaf of the manuscript there is a way to bind it such that no text crosses the gutter, even though there are a lot of irregular elements in the manuscript, like labels, offset lines of text, circular or rotated writing
2) for wide or tall foldouts like You are not allowed to view links. Register or Login to view. or the Rosettes it's impossible to fold them to 6x9 MS format in a way that no text would cross vertical or horizontal folds, so writing strictly in chunks of 6x9 inches was not a design requirement of the manuscript
From these two I think it seems highly likely that the manuscript was specifically made in a way to allow binding it.