Inside Out Library · Explore[Balloon bulletins]1918 · 3 picturesBalloons · Aeronautics, MilitaryInternet Archive · Smithsonian Libraries · Public domain (published before 1931) · More from this library
![Picture 1 of 3 from [Balloon bulletins] (1918), leaf 650](https://img.insideoutlibrary.com/img/200/ia-balloonbulletins00-650-0.webp)
![Picture 2 of 3 from [Balloon bulletins] (1918), leaf 676](https://img.insideoutlibrary.com/img/200/ia-balloonbulletins00-676-0.webp)
![Picture 3 of 3 from [Balloon bulletins] (1918), leaf 695](https://img.insideoutlibrary.com/img/200/ia-balloonbulletins00-695-0.webp)