This three lens stereo camera was the first camera produced by German company Franke & Heidecke,Founded in 1920. Captureing images both on plates and cut film the Heidoscop was manufactured from 1921 to 1941. This camera was named after its designer Reinhold Heidecke. Franke & Heidecke went on to establish the popular Rolleiflex line of twin lens reflex cameras