Addiator

Practice in product photography.

 

It is a direct translation, the english name might be something else.

I found it among my grandmother's belonging, but I think it originally belonged to my great grand father.

 

I finally found the english name for this machine it is an "Addiator"

 

Looks a little like a myst puzzle to me :)

A very helpful museum here in sweden sent me a PDF file of an instruction manual for this thing. And it made my head spin :)

Done