alb4316654

Anti-aircraft device, First World War, 1914-1918, (c1920). Creator: Unknown.

Anti-aircraft device, First World War, 1914-1918, (c1920). 'The War against German Aircraft: a "Listening Post" in the French anti-aircraft Section. These listening posts in the French army consist of four huge horns, which gather up the slightest sound and magnify it by means of a microphone, so that it is impossible for an enemy or other aviator to approach unheard. The horns may be described as reverse megaphones.' From "The Great World War - A History" Volume IV, edited by Frank A Mumby. [The Gresham Publishing Company Ltd, London, c1920].

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Title:

Anti-aircraft device, First World War, 1914-1918, (c1920). Creator: Unknown.

Caption:

Anti-aircraft device, First World War, 1914-1918, (c1920). 'The War against German Aircraft: a "Listening Post" in the French anti-aircraft Section. These listening posts in the French army consist of four huge horns, which gather up the slightest sound and magnify it by means of a microphone, so that it is impossible for an enemy or other aviator to approach unheard. The horns may be described as reverse megaphones.' From "The Great World War - A History" Volume IV, edited by Frank A Mumby. [The Gresham Publishing Company Ltd, London, c1920]

Technique/material:

Photograph

Credit:

Album / The Print Collector/Heritage Images

Releases:

Model: No - Property: No
Rights questions?

Image size:

4058 x 5463 px | 63.4 MB

Print size:

34.4 x 46.3 cm | 13.5 x 18.2 in (300 dpi)

Keywords:

1910S • 1ST WORLD WAR • 20TH CENTURY • ANTI-AIRCRAFT UNIT • ARMED FORCES • ARMIES ARMY • ARMIES • ARMY • B & W • B / W • B&W • BLACK & WHITE • BLACK AND WHITE • BOOK • CENTURY • CONCEPT • DEVICE • FIRST WORLD WAR • FRANK ARTHUR MUMBY • FRANK ARTHUR • GREAT WORLD WAR: A HISTORY, THE • GRESHAM PUBLISHING CO LTD • GRESHAM PUBLISHING COMPANY • GUY • HORN • HUNDRED YEARS WAR • INNOVATION • INNOVATIONS • LISTENING POST • MALE • MAN • MEGAPHONE • MEN • MIC • MICROPHONE • MUMBY • PEOPLE • PHOTOGRAPH • SOLDIERS • SOUND • TECHNOLOGY • WAR • WARFARE • WARS • WORLD WAR I (1914-18) • WORLD WAR I • WORLD WAR ONE • WW1 • WWI