File:NNSA-NSO-561.jpg

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Description PLUMBBOB - 1957 - NEVADA TEST SITE -- This prototype shelter door, designed by American Machine and Foundry Company, was relatively undamaged by a recent atomic test. This blast however, removed a steel flange from the right side of the door, and ripped away one end of a steel flange on the left side. Technicians of the Civil Effects Test Group, NTO say the door, which was designed and located for testing at a pressure of about 35 pounds per square inch, could be used as it stands. The full-size drawbridge type door is designed as closure for a dome-type shelter of about 150-feet diameter. The door, shown in closed position, drops into its specially fitted concrete bed, and serves as a road or walkway into the shelter. It can be fitted for manual or power operation.
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This image is available from the National Nuclear Security Administration Nevada Site Office Photo Library under number PLU-57-181.

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Author National Nuclear Security Administration / Nevada Site Office
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Public domain This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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current00:54, 3 September 2012Thumbnail for version as of 00:54, 3 September 20121,424 × 1,152 (436 KB)Bomazi (talk | contribs){{Information |Description=PLUMBBOB - 1957 - NEVADA TEST SITE -- Mosler Safe Company's standard safe door and reinforced concrete vault is shown after a recent atomic test. It was designed and located for testing at a side-on overpressure of...

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