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.
Describes raw materials used in telephone manufacturing. The map shows a location of Russia. Platinum mined in the dredges of Ural Mountain streams. Hand examines crushed platinum ore in a bowl. Mixture of silver, gold and platinum is melted and poured into mold. The resultant alloy bar is placed between samples of gold, silver and platinum on a table. Animation shows use of the alloy in a telephone instrument.
Describes raw materials used in telephone manufacturing. The map shows a location of Sumatra in Indonesia. View of the island. Natives around their settlements on the island. Natives outside a Sumatran temple. Houses of Sumatran architecture in a village. Rubber trees are girdled and latex is collected. Natives bring latex in containers. The containers are weighed and coagulated. Coagulated rubber is taken out. Rubber blocks are loaded into railroad cars by Sumatran natives for transportation. Picture shows a telephone receiver made up of rubber.
Thomas Edison operates a movie camera, evolved from his kinetoscope invention. He makes a movie image of Henry Ford, seated in a chair in front of the camera.
A documentary titled 'Story of Ford coal and coke' covers the daily routines of mine workers and family in Stone, Kentucky. View of residential areas of Stone, in middle of mountains,children playing,several people sitting in front porch while others standing in shade. Mine workers climb onto a railroad car and move towards the mines in mountains. Several men on small railroad cars carry lunch boxes along with them.
Two men wearing mining helmets on small railroad cars digging coal mines. A mining machine undercuts large faces of coal. Then a large scoop is dragged across the path of the machine and scoops the gathered coal into Tipple cars. The cars move on the railroad tracks and exit the mine, headed toward the valley. Views of the track running into the valley and the mountains surrounding.