Photograph of servicemen of the Third Balloon Company with a Caquot observation balloon, Valdahon, France, circa 1918.Inscription: "3d Balloon Co at Valdahon."
Document entitled "Manoeuvering Regulations for Type R Balloon," circa 1918. Typescript instructions with handwritten diagram at bottom detailing roles of rigger and telephone squad men. One typed page.
Tally form for balloon observation notes, including ascensions, adjustments, registrations, hostile batteries seen in action, and hours in the air, circa 1918.
Large chart titled "September - Daily Record of Drachen Allemands" (German Balloons), circa 1918. Chart records sightings of balloons during September 1 to 15, in a number of French communes including Boinville, Harville, Billy-sous-les-Côtes, Beney,…