First you got my hope up for visiting this collection someday
, but now my hope is almost gone again
It's so sad with that kind of trouble to get some simple photos taken, and that you had to pay for them, and in bad quality at that. But that seems to be the way of many museums around the world; the objects are theirs and theirs alone. So studying the crossbows seems to be hard to arrange.
I found out about these crossbows in Egon Harmuths book , ‘Die Armbrust. He writes somewhere in the book,( I can’t find the page right now), about 24 war crossbows kept at the same place since medieval times. That started my interest and my want to see them some day.
Later I found out that Holger Richter has a chapter about these crossbows, 25 he says, in his book, ‘Die Hornbogenarmbrust’. Many of the bows covered with hunting designs and the coat of arms of Matthias Corvinus, the king of Hungary, Croatia and Bohemia, who died in Vienna in 1490.
I have also found an article by Dr Julius Bielz from 1934, but sadly the copy is more or less as bad as your photo.