Group of instructors and students stand in front of O-38 airplane in Rockwell field, California. Pilot and student board the plane. Cockpit of O-38 shows controls and instruments panel. O-38 instrument panel shows artificial horizon, altimeter and ball-bank indicator. Closeup of the Sperry artificial horizon instrument. A chart of Artificial Horizon shows how the instrument operates. A Directional Gyro in the hands of a pilot. This is marked as a 'Turn indicator A.C. type B-2' Chart shows how the directional Gyro operates. Sensitive Altimeter in hands of a pilot. A rate of climb indicator in the hands of a pilot.
2-man Renault FT Light Tank being demonstrated during World War 1. It moves through various wooded areas and negotiates steep inclines. (Note: Following the war, this type of Renault tank was often referred to as the FT-17.)
Montage of British artillery firing in World War 1. A British 60 pounder. A British 9.2 inch howitzer. Batteries of British 18 pounders firing from various locations.
A British gun crew firing an 18 pounder during World War 1. They are stripped to the waist and rapid-firing their field piece. British gun crews firing 60 pounders and 9.2 inch howitzers. British gun crews firing 18 pounders on a field.
French forces fire a 370mm railway howitzer during World War I. The recoil moves the train backwards several feet. British fire 60 pounders and 9.2 inch howitzers. British occupying and entrenching in area formerly held by German troops. Bodies of dead German soldiers are seen in various places.
British artillery pulled by horses. British gunners fire a 9.2 inch howitzer. British infantrymen smile and eat while settled deep in a trench. Four German prisoners of war carry a wounded comrade on a litter, on their shoulders. Large group of German prisoners of war. Some German prisoners stand near some smiling British infantrymen.
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