Recently I began to pay attention to the region of what is now southern Poland - around Czestochova, Katowice and Krakow, this not in the least part induced by that guy Wroblicius having originated from Mstow and later settled in Krakow which was one of the scientific centres of the time.
Occasionally I stumbled upon this You are not allowed to view links.
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Login to view. about the work "Algorismus Minituarum" by Marcin Król, the famous Polish 15th c. scientist. This paper reproduces some pages of BJ 1927 (Jagellonian Library, Krakow) which (as the notes tell us) is a contemporary copy produced by Jan z Olkusza (Jan from Olkusz, that being some 40km from Krakow) - who, as I understand, was a mathematician and astronomer himself, and it is said that the Jagellonian Library holds his 1444 copy of Euclid. Unfortunately, no scans of his manuscripts seem to be available on the net. However, I very much like the writing style. He seems to use several styles for some letters, but some "h", "l", "p", "t", "b", "g" are quite close to what we have in You are not allowed to view links.
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Login to view. marginalia, this let alone the long tail "s" and "f" (see fig. 1 and fig.6 in particular), and the "d" which in some places tends to what we find in "oladabas". Also, I like the decorations surrounding the capital "M", similar to those that sometimes surround the gallows.
This is clearly not the hand of the Voynich marginalia, but the style may be suggestive?!
So I wonder if there is some writing style or school which is characteristic to the 1st half of 15th c. and the whereabouts of Krakow?