Some old stuff I had on my desk because I was too lazy to put it away...
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The three-way receptacle is actually like a US gem tap, it can be plugged in or screwed on instead of a single face plate. The rotary switch with the hexagon knob is probably not original. I found it in a former kids bedroom, missing the cover, just two layers of wall paper. The receptacle guts belong to a receptacle matching the switch with the glass plate.

Now with a few covers off...
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Note the brown paper fuses in the receptacle.