Lieutenant Lender and Paul Heldelberg present the "Piloteur" to the Invention Department's Technical Aeronautic Committee. Using this device, which is anchored to the ground, student pilots can learn...
In a field, soldiers, officers, civilians, and Jules-Louis Breton, members of the Invention Department Committee, study different types of machine guns designed to be fired at tanks.
The Higher Invention Committee examines the Chilowsky shrapnel to increase the power of projectiles.
A group of officers and civilians attends the assembly and test-firing of the 240mm Trench Mortar.
Aboard a small boat pulled by a tugboat in the Toulon harbor, Jules-Louis Breton and some members of the Invention Department Technical Engineering Committee try out underwater goggles to find a subma...
The Higher Invention Committee attends anti-torpedo test-firing beside a lake.
During the war, from 1914 to 1918, a cable-operated funicular railway built by the company Etcheverry is loaded with boxes of ammunition and tested in the open countryside at ground level and over wat...
Destruction inside the Soissons cathedral and a visit from the President of the Republic soon before the Chemin des Dames offensive. A city is damaged and a bridge is destroyed over the Aisne river. D...