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Photograph annotated: "Firing of the first atomic shell in the Armies [sic] first atomic canon at the N.P.G."

Sign reads: "This is NEWS NOB where on April 22, 1952, the American Press & Radio first covered, and the Nation first viewed by the medium of Television, the firing of a nuclear device generally known as 'Operation Big Shot.'
"NEWS NOB received its…

Photograph of a bomb test at the Nevada Testing Ground.

"One of the largest mushrooms ever seen from Las Vegas rises 40,000 feet over the Nevada Test Site 65 miles away at 6:30 a.m. Tuesday seconds after detonation of the fifth atomic device in current Series. Device was detonated from a helium balloon…

Image of a small nuclear explosion in the Nevada desert.