Which other manuscript contain the most Voynichese glyphs?

[DONJCH]

   
This is a bit late in the thread due to technical issues but here is a cipher from 1441 showing, marked in red, what looks like an almost full size EVA-k gallows. There is also a cis underneath it and a ris further up the page. (Meister P36)

So somebody bang in the prime VMS timeframe made a clear distinction between these 3 forms.
This also may illustrate why I think ris looks like a diminutive squashed insect by comparison.
No offence meant to Marco's great post, but plenty to the ugly Gothic script in Oresme!