This is an acquisition that I purchased earlier in the year (a great bargain off EBay!).

I decided to have a look inside it (not having any clue what goes into a function generator of this caliber.

Nice idea of putting the wiring schematics on the cover of the unit, as that way one can always figure out how to put the whole thing back together. And then I saw this:

Wow.  So I decided to save a deeper dive into the unit for a later date. I built a stand for the generator and called it a day.