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Atomic Bomb Collection

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Letter from Robie S. Lange to Harry S. Truman Presidential Library Staff, with Attached Drawings

9 img

The drawings attached to this letter are architectural and engineering drawings of McDonald Ranch at Trinity Site. The ranch house served as the site of the final assembly of the plutonium core for the world's first atomic bomb, detonated at Trinity Site in Los Alamos, New Mexico on July 16, 1945.

#12015168