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New Air Raid Warning System


A poster providing instructions for the air raid warning system with the three columns 'When Signal is Given - It Means - You do This.' First is Blue Warning, a steady blast, meaning enemy planes headed in your direction. Second is Red Danger, a series of short or wavering blasts, meaning bombing expected. Third is Blue Warning again, meaning enemy planes have passed. Final line is White All Clear, a radio signal indicating danger is over. To the right of each line is a list of appropriate actions to take for each signal, and further information is at the bottom of the poster.




[Washington, D.C.]: U.S. Government Printing Office



20 x 28 inches


1 poster

Resource ID



OCD Publication 7015-1; 1943-O-534055

Digital Publisher

Digital resource provided by the Maryland Center for History and Culture


As a U.S. Government publication, this work is in the public domain and therefore may be used, reproduced and distributed without permission. As the Maryland Center for History and Culture is responsible for the digitized version of this work, the MCHC requests attribution for material obtained from this website, citing our name and the resource ID.

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