We have 2 Switches Lamp hardware Lot Vintage Items. 1 has a bit of cloth wire sticking out still. They are off white with a push button type on off on the side of each one. I think these are plastic but they could be bakelite, I'm not sure. They measure about 2 3/4" x 1 3/4" W x 7/8" in depth. They are marked on one side "und lab SA inc.list" They are in good vintage condition, the switch/button has a bit of staining but this may come out with a chemical cleaning, we just used a damp cloth.