Electrical eaves-dropping

Contenuto

Titolo
Electrical eaves-dropping
Oggetto
en
en
Article Title and/or Image Caption
Electrical Eaves-Dropping by the Signal Corps of the United States Army
Caption 1: The dictagraph receivers are put anywhere they will be handy. Here is one being placed in a tree top
Caption 2: Listening for the sound of operations by enemy sappers. This often entails a great deal of danger and discomfort
Caption 3: Crawling up to an enemy trench to place a transmitter, which is cunningly camouflaged in a battered tomato can
Caption 4: A trench receiving station where the conversation and movements overheard by the transmitter are noted
Autore secondario
Western Newspaper Union (photos)
Lingua
eng
Copertura temporale
World War I
Data di rilascio
1918-04
pagine
493
Diritti
Public Domain (Google digitized)
Sorgente
Google Books
Referenzia
United States Army
Archived by
Filippo Valle
Alberto Bordignon (Supervisor)