A flight of 5 U.S. Army DH-4 pursuit airplanes takes off in loose formation from a grass field in the U.S.A. They join up in a "v" formation and fly overhead. The location is a well-established air base, containing many large hangars and other buildings and a tall water tower. Slate alludes to them performing a border patrol mission. (World War I; World War 1; WWI; WW1)
A telephone equipment in the United States. View of two rows of telephone switchboard equipment inside a telephone building. Numbers written beneath the switchboards. Another telephone equipment in view.
A telecommunication center in the United States. A few women employees seated in a lounge at the telecommunication center. The women beside counters at a cafeteria. A large number of women employees seated around tables in the dining area and having food. A few women beside equipment in a kitchen.
Underground telephone cables in the United States. Workers installing telephone cables below the ground. A worker fixing telephone lines standing on a platform on a telephone pole. Two workmen installing telephone cables under the ground. A cable from a cable reel roller is lowered by a few workmen into a man hole. Men standing beside a cable reel roller in front of a building. Several officials beside the cable roller.
Telecommunication process demonstration at a telecommunication center in the United States. A diagram of a switchboard and telephone operation at the telecommunication center. A man pointing to the diagram demonstrates how a telephone call is received, routed and completed in the communication process. View of a switchboard. Three women telephone operators seated operate the switchboard.
Telephone and telecommunication equipment at a telecommunication center in the United States. The telephone equipment beside a man hole on a city street. A worker beside the equipment. A worker lowers gear into the man hole. Men on the road and buildings in the background. View of electrical equipment inside a telecommunication center building controlling the telephone system. Employees checking specific gravity and temperature at the equipment. Another equipment in view at the center.
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