Workers in a glass factory during World War One are shown making lenses for military applications. This photograph, numbered 844 and taken in 1919, depicts the important role of industries in wartime production. The labor-intensive process of making glass lenses was crucial for various military advancements.

---

Size: 9182px × 6304px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 111-sc-844, activities, american, battlefield, complex, economy, effort, efforts, engineering, equipment, factory, glass, industrial, industries, industry, innovation, inventions, lens, lenses, line, logistics, machinery, manufacturing, military, optical, optics, photographic, process, production, resources, soldiers, supplies, technology, war, wartime, weapons, workers, world