It's not even Christmas yet, but here I am the recipient of a marvelous gift. It is so fabulous. Earlier this year, Tracy over at Tracy's Toys bought something she had never seen before--an early 1900s tin postcard projector. You insert a postcard, and you can project the image on a wall. I remember seeing it and marveling at it, but I never thought I'd have one of my own. Then, out of the blue, Tracy decided to send it to me. Wow!
Here is the back, where you insert the card. The chimney serves to dissipate the heat from the light bulb.
Here are some side and front views, showing the lens.
And, yes it works, although it takes awhile to switch cards, so your audience may lose patience. I don't see any reflector in the box though, so I'm not sure exactly how it works. Here's a diagram from a 1909 Popular Mechanics article that shows a postcard projector with two lights.
If you love gadgets and toys, be sure to take a look at all of the other good stuff over at Tracy's Toys. Eventually Tracy is going to run out of space to display her collection and she'll have to open a museum. I'm looking forward to that day.