Production. Tin smelting. "Pot boilers" of a Southern tin smelter in which the pure metal is kept at a temperature of about 750 degrees Fahrenheit until it is poured into molds. The plant, which processes South American ore is the finest and the most modern 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 1837.