Photographic postcard of servicemen with a 6-inch disappearing gun at Fort Flagler, Washington, circa August 1917.Inscription: "6 in. Disappearing Gun - ready trip! No. 153. Torka's Studio, Port Townsend, Wash."Inscription on verso: "Dear folks -…
Photograph of servicemen of the Third Balloon Company with a Caquot observation balloon, Valdahon, France, circa 1918.Inscription: "3d Balloon Co at Valdahon."