The Tragedy of Vincendon and Henry in Chamonix, France in 1957. [Getty Images]

FRANCE - CIRCA 1957: The Alouette II take off from Chamonix in France on January 3, 1957 . (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images) — see more

FRANCE - CIRCA 1957: The Alouette II take off from Chamonix in France on January 3, 1957 . (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)

Gamma-Rapho REPORTERS ASSOCIES