This child’s toy, in the shape of a 4 valve saxophone, looks a lot like J. Keilwerth’s Jazzophone—except with an extra valve—that was built from 1982-86 in very limited numbers (a total of approximately 100).
This toy is marked Camp Saxo France, and is similar to Delinot’s, solid brass, 4 valve sax.
If you’d like to read more about the real Jazzophone, check out the website dedicated especially to saxophone-shaped trumpets. J. Keilwerth wasn’t the only company that made them. They were just the most recent.