This is one of two folding 35mm cameras that are based on the same design. These cameras also are from the 1950s.
There may have been a Solinette I, but I haven't seen one.
This is one of the higher-end models, as it is fitted with a coated Agfa Solinar in a Synchro-Compur shutter.
The Solinette is a zone-focus camera, which means that you must guess on the distance to your subject. If you're not good at guessing, then you probably should buy a small handheld rangefinder, which is what the previous owner used.
Photos from this camera are very good. A little soft wide open, but generally sharp.
It's a nice little camera that isn't too heavy and will give you decent photos most of the time. The top deck is very clean, and the camera has a symmetry that you will notice immediately.