The Auto-Ultrix was manufactured in 1932 by Ihagee, who went on to make the famous Exacta SLR cameras. Despite its small size, it takes 8 full-frame shots per film. It has an excellent Zeiss Tessar f3.5 lens with lever operated helical focussing, and a Compur shutter with speeds of 1 - 1/300th seconds. It was a delight to use, and is probably my favorite camera.