Mine workers eat food at a mess hall in a copper mine, Kennecott, Alaska. Man-cars operated on inclined shaft used to transport the miners.
A mine worker wet-drilling at a stope of a copper mine in Butte, Montana. Water is sprayed from drills onto stope walls that makes sludge of the cutting and prevents dust.
Describes raw materials used in telephone manufacturing. Women pick cotton at a cotton farm in United States. Bales of cotton taken on hand carts. Animation shows the use of cotton thread inside a telephone's transmitter.
Describes raw materials used in telephone manufacturing. The map shows a location of British Columbia. Animation shows mining of gold through tunneling in a mountain. Gold ore mined inside a gold mine in British Columbia. Gold is smelted and poured into molds for casting slabs.
Describes raw materials used in telephone manufacturing. The map shows a location of Queretaro in Mexico. Workers collect molten silver pouring from a huge bowl at a smelter. Silver ore is crushed in a huge stone crusher. Workers load ore bags on their backs. Workers stack slabs of silver.
Rationing during World War I. Large crowd gathered outside a building. People collect rations at a counter. People wait in queue outside an American Red Cross Relief Station. Food and medical supplies distributed among people. Red Cross nurses near the queue. Cart rolls supplies from a warehouse.
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