August 30th, 2009
So last year Jacob and I bought some glass slide at a flea market in Antwerp. One slide had a date written on it: 1925. I just took some time to scan the images. Each glass plate consisted of two images separated by a thick black line. Both images on each plate are nearly identical except one is slightly offset form the other. Therefore, I believe this is some sort of 3d projection technology from the 1920s. Enjoy.