I asked one our glass-authorithies, with no result for the first. We have
a rather good library with European glass, but to look all through this
stuff I'll need surely some hours. If theres no other help in sight mail
me again, I'll can ask the next big brain on glass. There are enough
glas-people in our scene, but you'll have to change the medium, using
good old paper.
Gerhard Dangel-Reese
Augustinermuseum