This photograph shows a general view of the mechanical laboratory of the Bureau of Mines in Pittsburgh, Pennsylvania during World War I. The laboratory was dedicated to determining the physical properties of the metals used in munition products to ensure their quality. The machines and operators in the photograph are responsible for maintaining the high standards of materials that American soldiers use in battle.

---

Size: 8448px × 5862px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: activities, american, analysis, assurance, bureau, control, defense, determination, effort, equipment, industrial, lab, laboratory, machine, machinery, machines, manufacturing, materials, mechanical, metal, metals, military, mines, munition, munitions, operators, pa, photographs, physical, pittsburgh, preparedness, production, products, properties, quality, role, safety, soldiers, supplies, technology, testing, tests, war, work, world