Public domain
Stuffing box castings. A New York City instrument manufacturer is seeking rough casting and sand blasting facilities for the manufacture of eleven stuffing box castings, varying in weight from three quarters pound to two pounds. Material: soft steel, Navy specification forty-nine Sl, grade B. Quanti
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Credit lineStuffing box castings. A New York City instrument manufacturer is seeking rough casting and sand blasting facilities for the manufacture of eleven stuffing box castings, varying in weight from three q. 1941-01-01. Gruber, Edward. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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