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Production. Tin smelting. A laboratory assistant at a Southern tin smelter performs delicate analytical operations that determine the amounts of pure metal remaining in slags from the furnaces. Accurate laboratory control is one of the important reasons why the percentage of metal recovery from the
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Production. Tin smelting. A laboratory assistant at a Southern tin smelter performs delicate analytical operations that determine the amounts of pure metal remaining in slags from the furnaces. Accurate laboratory control is one of the important reasons why the percentage of metal recovery from the

Hollem, Howard R., United States. Office Of War Information · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

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safety film negativestexasunited statesgalveston countytexas city
Credit lineProduction. Tin smelting. A laboratory assistant at a Southern tin smelter performs delicate analytical operations that determine the amounts of pure metal remaining in slags from the furnaces. Accura. 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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