Link below shows a film (6'31") about a French motorized Kite unit during WW1 (arriving, assembling kite, get it into air, fixing the camera and looking at the photo's taken):
Very interesting, I appreciate you sharing this information. I would like to find a clear side profile of the French vehicles in the film.
All the Best
Tim R.
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"The life given us by nature is short; but the memory of a well-spent life is eternal" -Cicero 106-43BC