The Magic Lantern was invented by the Dutch Scientist Christiaan Huygens in the 17th Century, and later developed by the Germans, primarily as an entertainment device. The lantern, or projector, used a concave mirror in back of a light source to direct as much light as possible through a small rectangular sheet of glass (lantern slide) on which the image was to be projected and onward to a lens at the front of the apparatus. Natural light, oil lamps or candles were the only source of light at the time, but later on with the invention of the electric bulb, these were used. After 1820 the manufacturing of hand colored slides began, often making use of the process of decalmania transfers which were quicker than the hand painted technique. Here I have pictured 6 good glass slides, using this technique, and 1 that is broken, but can be carefully glued back together. Also included is the original box, which measures 1 1/2" by 5 1/2" and is 1" in height; the slides are slightly smaller.