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. The plant is the finest of its kind in the world

Actual size of negative is C (approximately 4 x 5 inches).
Caption card lists some of the printing history of image.
Title and other information from caption card.
Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944.
More information about the FSA/OWI Collection is available at http://hdl.loc.gov/loc.pnp/pp.fsaowi
Film copy on SIS roll 31, frame 1836.