thank you and I am glad that you like the photo!
About Typenschein: I am sure that Michael can explain you better, especially because it is in German language. It contains technical information and a nice sketch, which I find partculary useful, and also info about previous owners (which I left out, so there should be no “sensitive” information). I wanted to post it here, but the forum doesn’t allow the pdf files to be uploaded. Now I made 5 photos out of pdf file and it should work, so you can see what it looks like.