Sound detector, 1939
Soldiers drill on a ring-horn acoustic direction detector with the help of which from the engine noise of the flying airplanes could be calculated their course, direction and speed. The detector belongs to a battery in the vicinity of Berlin
Picture No
10627048
Media ID
48200685
Size
2002px x 2818px
(1.3MB)
Credit
Mary Evans / Sueddeutsche Zeitung Photo
Usage Restrictions
No model release, no property release. No commercial, merchandising or advertising use without prior permission from Mary Evans Picture Library
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Restrictions Only for Canada and Curacao and United Kingdom and United States Of America
Acoustic Battery Belongs Calculated Detector Drill Noise Vicinity
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