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File:Are your drawers closed? Manhattan Project security poster.png

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43: 289: 228: 91: 677: 57: 53: 47: 102: 70: 173: 153:. It warned employees to keep drawers in offices closed and put classified documents into locked safes when they were not being used, to prevent unauthorized personnel from seeing them. 246: 241: 267:, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the 271: 299:
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676: 671: 61: 42: 510: 421: 178:, Manhattan Project, U.S. Army Corps of Engineers, Book IV: Pile Project, Vol. 6: Operations, Appendix B, C, D & E, p. 109 799:
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Are your drawers closed? Manhattan Project security poster.png
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File
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Metadata
File:Are your drawers closed? Manhattan Project security poster.png
558 × 600 pixels
223 × 240 pixels
447 × 480 pixels
873 × 938 pixels
Original file
Wikimedia Commons
description page there
You can help
Manhattan Project
atomic bomb
Leslie R. Groves, Ed. (~1948) Manhattan District History, Manhattan Project, U.S. Army Corps of Engineers, Book IV: Pile Project, Vol. 6: Operations, Appendix B, C, D & E, p. 109
Internet Archive
public domain
work prepared by an officer or employee of the United States Government as part of that person’s official duties
Title 17, Chapter 1, Section 105
US Code
U.S. state
territory
United States Postal Service
since 1978
313.6(C)(1)
The US Mint Terms of Use
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
depicts

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.