This is the smallest 120 folding camera that you can get. The Zeiss Ikontas come in various sizes and were made from the 1930's until the early 50's. This example was one of the early pre war ones and seems like a great shooter. It has a simple shutter and release arrangement, no body release, it's all on the shutter assembly. So that means easy double exposures if so desired. These cameras are a blast to use and will run you anywhere from $30-200 on Ebay depending. I think this one was about $45 or so but it is a bit beat up and lacks the nicer Compur shutter and Tessar lens. One thing you need if you want to shoot these oldies is a good light meter. The Voigtlander meter that Cameraquest sells is super tiny and I carry one in my pocket every day: cameraquest.com/voivcmet2.htm