Very cool slide projector from the 1950’s, called the Zett 150. It’s case is all steel painted wine red. It was the smalles projector for sale for a long time. It even comes with a Voightlander lens that is ajustable. It measures 13cm / 51/2 inch high. There is a bulb in it, but no powercord so let’s say it is not working. But what a display piece! Check out the video for a working big brother of this small Zett 150.