Anyone has info and/or picture of a small helicopter attributed to a Mr. Henri Bergier?.
Reportedly it was shown at a 1954 Fair/Exposition in Saint Etienne, France. At the time it was said it had not (yet) flown.
Thanks, Walter
Reportedly it was shown at a 1954 Fair/Exposition in Saint Etienne, France. At the time it was said it had not (yet) flown.
Thanks, Walter
