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Navy Armor Building
Rustless Iron and Steel Corp.
9,000 ton hydraulic forging press
Preparing steel revolving cage for Hale Telescope for transport
Steelwork for Hale Telescope yoke mount during construction at South Philadelphia Works
Lukens Steel Mills by night, Coatesville, Pa.
Electric machinery
Central section of steel horseshoe bearing for Hale Telescope mount open during construction at South Philadelphia Works
Fitting multiple sections of Serrurier truss tube assembly together for Hale Telescope at South Philadelphia Works
Air views of Lukens Steel Company plants
Air views of Lukens Steel Company plants
Air views of Lukens Steel Company plants
Lukens Steel Co.
Lukens Plant View
Stacks of an Open Hearth
No. 1: Company
Air views of Lukens Steel Company plants
Plate manufacturing
Celluloid model of Hale Telescope and mirror in exhibit display case
Captain Clyde S. McDowell posing with south crossbeam for Hale Telescope yoke mount at South Philadelphia Works
View through nearly completed Serrurier truss tube assembly on its side
I Want You! Poster
Electric melt shop
Air views of Lukens Steel Company plants
Brandywine Rolling Mill

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