Balloons

Title: Balloons
Subject: en Technology; en Airplanes and Zeppelins
Article Title and/or Image Caption: Balloons - An important factor in national defense
Contributor: Alexander Klemin
Language: eng
Temporal Coverage: World War II
Is Part Of: Scientific American, v. 165, n. 2, 1941
pages: 94-95
Rights: Public domain
Archived by: Stefano Furi