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Tulsa, Oklahoma. Pumping station engineer with an apparatus known variously as "pig", "go-devil" and "scraper". It is sent through the eight inch pipeline at intervals for cleaning, to remove obstructions and to detect leaks
Public domain

Tulsa, Oklahoma. Pumping station engineer with an apparatus known variously as "pig", "go-devil" and "scraper". It is sent through the eight inch pipeline at intervals for cleaning, to remove obstructions and to detect leaks

Vachon, John · 1942-01-01 · photo, print, drawing

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

Credit lineTulsa, Oklahoma. Pumping station engineer with an apparatus known variously as "pig", "go-devil" and "scraper". It is sent through the eight inch pipeline at intervals for cleaning, to remove obstruct. 1942-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.

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