Hello
New member here. Picked up this item at a local sale. It's made from galvanized steel and appears to be some sort of projector. The lens on the front has no focusing ability. It's very well made but has the look of something that was made in a shop like a lot of railroad items you see. Inside the back there are three light sockets. Two are standard size and one is candelabra size. They all turn on together with a single toggle switch on the side. On the side of unit there is a single female 110V two prong receptacle to power the unit. No label anywhere. I don't see any kind of setup in the back to mount a postcard or anything else so that it could be projected on a screen. The two regular size bulbs in the unit are high wattage purple colored and very hot. Any ideas? Thanks in advance for your help.