Public domain
Kern County, California. Mill of the Tungsten Chief Mine. Pulverized tungsten ore is mixed with water and then run over a vibratory table where the ore is further concentrated; in this picture the final concentrates appear in the two pans in the lower left hand corner
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineKern County, California. Mill of the Tungsten Chief Mine. Pulverized tungsten ore is mixed with water and then run over a vibratory table where the ore is further concentrated; in this picture the fin. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
Similar works
Creede, Colorado. Lead and silver mining in a former "ghost town"
Negro workman packing down cotton linters in truck at cotton seed oil mill. McLennan County, Texas
Production. Copper. Tapping copper slag at the Garfield, Utah smelter of the American Smelting and Refining Company. This plant is producing vast quantities of the copper needed for war purposes
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Open hearth steel is also made at this plant. Here a worker sits at the controls of the charging mechanism for loading materials and elements into the furnace. This open hearth furnace has a capacity of about 10
Creede, Colorado. Lead and silver mining in a former "ghost town"
San Francisco, California. Pouring tin "pigs" at the metal and thermite company. The metal has been reclaimed from tin cans