Since this picture has a reference to Stuttgart, I am assuming that it is a German representation ofthe way our bodies work. From the style I would guess that this is from the 1950's. It is all very industrial with lots of cogs and iron. Today we would probably portray things differently with integrate circuits and wireless connections. Of course, in order to be really up-to-date, we would have had to outsource and offshore a lot of these functions. If you are surprised at how much German has changed since the 1950's, the text on this copy is in Turkish. I picked it up from the pharmacy on Turnacıbaşi sokak.
Here's an enlarged view of the head. Is this the way yours works? Is that a spider's web or is it some old scentific apparatus ? If those are people deciding in the upper right compartment, I think I have about twelve. And today I have a cold, so I really do feel that I have those 1-ton cast-iron wheels going round and round in my nose.