This manuscript is held in the Library of Congress, Rare Book and Special Collections Division.
The library of Congress also holds a rhumb-gridded “portolan” chart dated to 1320.
See also my earlier posts on hand-calculations, -gestures and -mnemonics. (search ‘hand’).
If any kind soul would care to translate the page – which I think potentially very important, do email me at voynichimagery AT gmail DOT com won’t you and I’ll post your translation here.
Or, if you have your own blog/page etc., I hope you’ll send me a link.
Do we have a biography of Nicolo Stolfo?