Hi MaxD,
Noticed that you haven't received any help so I thought I would try.
I'm no expert but have researched German records for my own family tree.
Here are my thoughts:
Box 1 Johann Otto Schober
Box 2 Zollner (customs official)
Box 4 Wien (Vienna) St Elisabeth

The reason I say "Elisabeth" is that it looks like "Elisabeth" from my family documents. (the capital E looks funny as do many old German letters)
There is a St Elisabeth in Wien which is a hospital established in 1709
www.elisabethinen-wien.at/If the link doesn't work just Google St Elisabeth Wien.
Regards
Jack-a-lyn