This one I really don't know. Here's the caption of the photo: The jazz pianist and composer Erroll Garner, foreground, in 1946 photographing a mixed-race couple dancing in a Paris club, a rare sight at home in the United States then.
As a collector I know something about classic cameras from the 30's and 40's, but I also know that there were a lot of now-unknown manufacturers who made cameras in the post-war years for a while and then folded. What strikes me as odd is that it looks like a flat camera kind of like a much-later Rollei 16, one that does not use a normal 35mm cartridge. Also, you'd think that Erroll Garner could probably afford a pretty nice camera.