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Air raid warning device, January 1918. Copy of two photographs showing a sound detector. During the First World War acoustic detection devices were used to warn of enemy aircraft. The photograph was taken for the Ministry of Munitions.
Unique Identifier
AR9427344
Type
Image
Purpose
Public
Size
4929px × 3510px
Photo Credit
HIP / Art Resource, NY
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Tags
1910s
1st World War
20th century
ACOUSTICS
Adolph Augustus
Adolph Augustus Boucher
aerial warfare
AIR RAID
Air Raid Precautions
ARP
B&W
B/W
Black & White
Black and white
Boucher
Britain
British
concept
DETECTION
english heritage
FIRST WORLD WAR
HOME FRONT
INNOVATION
MINISTRY
Ministry of Munitions
Monochrome
Photograph
sound detector
Technology
War
WARFARE
WARNING
Wars
WARTIME
World War I
WORLD WAR ONE
WW1
WWI