Public domain
Production. Tin smelting. Tin is recovered from smelting furnace smoke in a Southern operation that produces pure tin from South American ore. All the smoke from the furnace is carried by long tubes to Cottrell precipitating units as shown. Here an electrical current of 65,000 volts throws out all t
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Credit lineProduction. Tin smelting. Tin is recovered from smelting furnace smoke in a Southern operation that produces pure tin from South American ore. All the smoke from the furnace is carried by long tubes t. 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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