Vocational school instruction for young men in the United States. Instructor issues instructions by phone to a boy, wearing a headset, who operates electrical switches on a switchboard or circuit board, in response. Two boys wearing headsets, sitting at table holding what appear to be interlinked radio components. One boy manipulates dials, as if tuning the radio. Camera pans the right where components including what appear to be stacked capacitors are being activated. A young man using a telegraph key or morse code key to transmit a message. Boys in a machine shop or factory where machines are belt-driven from a common drive shaft overhead (out of sight). Closeup of one boy turning a metal part on a lathe. He makes measurement with calipers as the work progresses.
Manufacturing of gas tanks for automobiles in the United States. Interior of a factory. Workers operate a metal working machinery. They display several parts.
Manufacturing of gas tanks for automobiles in the United States. Interior of a factory. Workmen operate a machinery. They place sheets of metal in a press. The sheets are bent into elliptical shapes, tanks without ends. A worker installs inlets. The worker welds inlets to the tanks. He installs ends. Another worker hammers down flanges to hold the ends of the tanks. He machine rolls the flanges on the tank ends. The seams on the tanks are welded. A tank tube is placed in a vice, internal partitions are placed and welded into position. The tanks are tested in vats of water for leaks. The fittings for attaching cars are attached to the tanks.
Mexican peasants on top of a Mexican train. Men in hats walk on railway track next to the train. During the US' Mexican punitive campaign seeking Pancho Villa.
United States Army soldiers searching for Pancho Villa during Punitive expedition or Pancho Villa Expedition. Soldiers on horses cross a waterway. Soldiers and people (civilian men and women) gathered near the water. Soldiers stand near the waterway. Soldiers on horses talk to other soldiers on horse-carts. The soldiers on horse-carts cross the waterway. American soldier on horse searches Mexican refugees in the area. A donkey carries supplies. Other soldiers stand nearby the soldiers. Mexican refugees traveling in horse carts. Punitive Expedition soldiers sit in a field. They talk to other soldiers.
A gathering of people. Mexican woman giving her chain. A woman opening her ear jewelry. Children on counters. Heaps of silver coins and jewelry. Silver utensils and vases seen. People donating money and goods to raise money.