Hi Marcus,
And thanks for re-enlivening that old thread of mine. Yes, that's a highly important historic piece in virtually 'untouched' condition for 500 years! Imagine!

Apart from the Germanisches Nationalmuseum Nürnberg and the privately owned Schloss Hohenlohe-Langenburg, where I took some of the images posted in this thread, they do not exist in any German, Austrian or Swiss museum or any private collection (except mine)!
Had I new information on such items I would post it right away.
The old site on early hand cannon has one big flaw: the tiny photos that cannot be enlarged!
How can anybody possibly design a site like that??!!! Grrrrrrr ....
Best,
m