Public domain
Oil pump housing showing aluminum alloy casting and finished casting which calls for milling, drilling, boring, and reaming operations
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineOil pump housing showing aluminum alloy casting and finished casting which calls for milling, drilling, boring, and reaming operations. 1941-01-01. Gruber, Edward. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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