A U.S. soldier throws two exploding incendiary hand grenades during tests in the United States in World War 1. . Closeup of an incendiary canister. The tester (unseen) taps the fuse end of the canister and lays it down on a rough corrugated surface. It smokes before exploding and creating an intense flame that melts the canister. Molten remains of the device.
Curtain manufacturing factory in United States. Women inspect the length of curtains by spreading them on a table. Women sew curtains using Singer machines. Curtains processed on a machine by men.
Curtain manufacturing factory in United States. Selvage of curtains woven by women as they work on a machine to prevent damage to the lace. Selvage is trimmed off. Piles of curtains lying at the factory as women work. Curtains scalloped and over locked in a single operation.
Curtain manufacturing factory in United States. Curtains washed and bleached. Five miles of curtain sewed together travels through porcelain rings into boiling vats. Piles of curtains on floor as curtains pass through porcelain rings and roll along the machines as they undergo washing. Curtains poured into a whizzer to be rinsed and dried. Men on work on various machines in the washing process.
Curtain manufacturing factory in United States. Curtains starched as they roll along machines, women work on machines. Curtains assorted, stretched with rollers and ironed.
Men work at a smelting plant in United States. Men remove trolleys loaded with raw materials from a crane's hook and push them away. Smelting takes place at a high temperature as it gives out a fiery flare.
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