Public domain
Production. Tin smelting. A section of the smelting or furnace building of a large Southern plant in which pure tin is extracted from South American ore. At the left is a row of "pot boilers" in which the pure tin is kept at a temperature of about 750 degrees Fahrenheit until it is poured into molds
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Credit lineProduction. Tin smelting. A section of the smelting or furnace building of a large Southern plant in which pure tin is extracted from South American ore. At the left is a row of "pot boilers" in which. 1942-01-01. Hollem, Howard R., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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