f116v squiggle from the multispectral images

[oshfdk]

I've tried to refine the shape of the squiggle by training a separate model on the dark parts of the squiggle itself.

   

It's still very blurry and the shape very uncertain, but there are a few possible new interpretations, if we consider this as a signature. First of all, after reviewing a lot of European signatures of the XV-XVII centuries and looking at this new image of this squiggle, I'm no longer sure the first letter is 'A'. I haven't seen a single case of this kind of tall and extremely thin 'A' with no visible horizontal bar in signatures, while I've seen the same kind of shape used a lot in name initial Ls and some other letters, where the leftmost stroke is just a decorative flourish. It's also possible that this leftmost stroke actually goes farther to the left and curls up, the dark spot to the left consistently appears together with the rest of the squiggle when using most models.

There is also something that looks like a loop over the right part of the squiggle, it's hard to tell whether (a bit more likely to me) the loop starts from the right bottom of the squiggle and continues up to the top of 'A-or-not-A' shape (and maybe beyond), or vice versa, starts at the top of 'A-not-A' and goes to the right bottom. What's interesting, this loop goes over one of the big wormholes in the vellum, which could indicate that it's older than the wormholes, and also it looks like the loop was made when the vellum was folded a bit along the bottom right fold, that this loop seems to cross. At least the part of the loop to the right of the fold is a bit offset vertically from the rest of the loop.

Overall even if this is an actual signature, there are many possible ways to interpret it based on the preserved parts. E.g.,

   

So, without some sample signature of a potential past owner (or author/scribe) of the manuscript I think it's nearly impossible to get any information from this.

I've also tried to apply the same model to other pages, to see which elements it will highlight, looks like it's most sensitive to text outlines (maybe this means that it's sensitive to locations where the ink is only present in tiny amounts, I'm not sure).