Production. Tin smelting. Storage piles of slag at a Southern tin smelter that extracts the pure metal from South American ore. This slag is reintroduced to the smelting process as many times as it is able to yield up useful constituents. The large amount of pure tin produced at this plant serves to meet many of the countless war demands of the United Nations

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 1835.