View-Master

The View-Master is a device used to view specially designed photographic slides called "reels," which contain multiple stereoscopic images providing a three-dimensional effect. When you insert a reel into the device and look through the lenses, each eye sees slightly different images, creating a sense of depth. It was a popular tool for sharing travel, educational, and entertainment images before digital technology became widespread. The View-Master offers an engaging, tactile way to experience visual stories and imagery in 3D, making it both an entertainment and educational device.