Operation Doorstep, Civil Defense Study, 1953 - Stock Image - C033/4519 - Science Photo Library

Basement lean-to shelter with mannequins. Operation Doorstep was a civil defense study conducted by the Federal Civil Defense Administration in conjunction with Upshot-Knothole Annie. NNSA/Nevada Field Office/SCIENCE PHOTO LIBRARY

Operation Doorstep (1953) – The Public Domain Review

1953 'operation doorstep', ALL images click thru- then …

24 Unsettling Before And After Photos From Operation Doorstep

File:Senior U.S. Department of Defense officials and officers witness Operation Portrex maneuvers on Puerto Rico, 8 March 1950 (SC 338221).jpg - Wikipedia

Atom bomb test site hi-res stock photography and images - Page 3 - Alamy

Operation Doorstep (1953) – The Public Domain Review

Civil War Portraits from the Library of Congress

24 Unsettling Before And After Photos From Operation Doorstep

Operation Doorstep

1953 CIVIL DEFENSE FILM OPERATION DOORSTEP NEVADA ATOMIC BOMB TEST 28072

The Day in Photos, October 1967: A Turning Point