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[Balloon notes]
United States. Army Division of Military Aeronautics · 1917 · 7 pictures
Balloons · Aeronautics, Military
Internet Archive · Smithsonian Libraries · Public domain (published before 1931) · More from this library
![Picture 1 of 7 from [Balloon notes] (1917), leaf 15](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-15-0.webp)
![Picture 2 of 7 from [Balloon notes] (1917), leaf 240](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-240-0.webp)
![Picture 3 of 7 from [Balloon notes] (1917), leaf 258](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-258-0.webp)
![Picture 4 of 7 from [Balloon notes] (1917), leaf 351](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-351-0.webp)
![Picture 5 of 7 from [Balloon notes] (1917), leaf 389](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-389-0.webp)
![Picture 6 of 7 from [Balloon notes] (1917), leaf 497](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-497-0.webp)
![Picture 7 of 7 from [Balloon notes] (1917), leaf 583](https://img.insideoutlibrary.com/img/200/ia-balloonnotes01unit-583-0.webp)