Yeah I’m thinking 50 for a ‘70s bike boom machine. I think the Mafac brakes might be the best part.
Hey what do you know, apparently Sir Sheldon and I agree. You have to scroll down quite a ways but Gina’s shows up a French low end boom brand.
https://www.sheldonbrown.com/velos.html
Follis Decent brand, especially known for tandems.
Flandria Actually Belgian, not French. Most Flandrias seen in the U.S. were low-end bike-boom clunkers, some of them made in Portugal.
Ginay Low end bike-boom line. Jeunet sound-alike
Ginet Low end bike-boom line. Jeunet sound-alike
Gitane Major brand. Jacques Anquetil and Greg Lemond used to race on Gitanes.
Gnôme Rhône Primarily an aircraft engine maker, which also built bicycles in the '50's. I had one when I lived in France. It had aluminum main tubes held into steel lugs by rivets.
René Herse The pinnacle of French cycling, specializing in top-of-the-line custom and semi-custom touring bikes; extremely valuable.
The image above is a Daniel Rebour illustration of a René Herse "Camping" model. The brand has been revived by a bicycle maker in Boulder, Colorado, USA.