A small car museum in West Sealand, Denmark, had many Tekno tools from the factory under the desk. I visited there recently.
I think these all held the car bodies upside down so that the worker could assemble them. They were clamped down to a worktable so a drill press could be used or parts placed into the bodies for final assembly. At least that is what I believe. Some are easier to identify than others. What do you think?
Mustang and VW van? Monza Mercedes 280SL Lloyd? and unknown? VW van