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United States. War Department. Division of Military Aeronautics

1 free book by United States. War Department. Division of Military Aeronautics, free to read online. Chapter 1 of any book is free, no account needed.

Writes aboutMilitary reconnaissanceBalloonsAerial reconnaissanceAerial observation (Military science)
Cover of Balloon observation, and instructions on the subject of work in the basket

Balloon observation, and instructions on the subject of work in the basket

United States. War Department. Division of Military Aeronautics