L'Aeronautique Page with Signatures

The L'Aéronautique Page with Signatures is a small collection consisting of a single item: the half-title page taken from the 1922 book L'Aéronautique by Charles Dollfus that has been signed by various aviators. Some signatures include notes and a few are dated 1953 but most are simply autographs. It is unclear if the signatures were collected all at once at a single event or if they were gathered over time at different occasions. Not all of the signatures are legible.