Very nice amateur camera produced by a French manufacturer: Marcel Christen at Vinneuf. The "Super" in the name of this model can be misleading, but this camera was launched long before the start of the Super-8 format.
Format 2x8mm
Produced: 1953 - 1961
2 lenses on a vertical slider: SOM Berthiot Cinor 1,9/12,5mm and 3,5/35 mm
A small adapter to be placed in front of the view-finder allows to match the viewing angle with the lens in use.
Frame rates: 12, 16, 24 fps