In total 500 hydrogen balloons, which
In total 500 hydrogen balloons, which are connected with cables, prevent air attacks on London. Test flight at Cardington. 10th Mai 1938. Photograph
Picture No
10965029
Media ID
46661244
Size
3612px x 5230px
(3.4MB)
Credit
Mary Evans/brandstaetter images
Source
Photograph - Anonymous
Date
1938
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Restrictions Only for Ireland and United Kingdom and United States Of America
Attacks Cables Cardington Connected Hydrogen Prevent
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