TIN FROM BOLIVIA

"Brings to the screen the intensely interesting story of the production of tin, one of the few important metals that is not mined in the United States." "Produced in cooperation with the largest tin mining company in Bolivia. Covers nearly every phase of mining, milling, smelting, and refining of tin." "Thorough and fine photography, together with its non-technical script, make it eminently suitable for telling the story of one of the most essential metals of modern civilization." Film world.