The Agfa Clack was made in Germany in the late 1950’s and early 1960’s. It gives eight 6×9 shots on a roll of 120 film and was really designed as a snap camera. The lens is so simple the image is focused onto a curve rather than a flat film plane as with most film cameras, hence the curved back of the camera.
I bought this one on eBay some time ago for just under £20. It has three exposure settings: bright, cloudy and close up and was originally designed for ISO 50 film. So I popped in a roll of Ilford PanF, which I have never used before, and gave it a whirl.
The shots are a bit soft, hardly surprising with such a simple lens. Also, I believe the camera has a slow shutter speed, about 1/30 of a second, so this may have contributed some camera blur. Still, probably fine for 1950’s contact prints.