Public domain
Uncle Sam makes own glass. Washington, D.C. Aug. 24. All optical glass used by the United States Navy is manufactured and finished by the Bureau of Standards in Washington. L. Maxwell, of the Glass Section, Bureau of Standards, is shown cutting molten glass into the mold. He uses ordinary tailor's s
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineUncle Sam makes own glass. Washington, D.C. Aug. 24. All optical glass used by the United States Navy is manufactured and finished by the Bureau of Standards in Washington. L. Maxwell, of the Glass Se. 1936-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
Similar works
Shenandoah Valley. Braden and Van Fossen Works,a flourishing shop outside of Staunton, which does such heavy work as machining different rock crusher shafts
Defense housing, Erie, Pennsylvania. B.J. Rogan, thirty-three, is employed as a drill press operator at the General Electric plant in Erie, Pennsylvania. Working strictly from sectional blueprints, he seldom knows if the fittings he makes will be used for submarines, minesweepers, or gun mounts
Factory
Accuracy comes first. Experienced inspectors check clip hoops for the ultimate in accuracy. The operation is part of the rush of defense orders in an eastern arsenal
Shenandoah Valley. Worker in the Penn Foundry Manufacturing Company at Waynesboro, Virginia, one of the largest shops in the Shenandoah Valley
New machines for war program. This is a broaching machine. Broaching is an efficient manufacturing method now being successfully adapted to gun making