General view of employees posed before the exterior of a building at the Hercules Powder Company's smokeless-powder plant located In Kenvil, New Jersey. Established in 1872 by the Atlantic Giant Powder Company, the Kenvil plant was the second dynamite plant built in the United States. The Hercules Powder Company (later Hercules Inc.) took over the facility in 1913 and built a smokeless powder line that allowed the company to become a major Allied supplier during World War I.
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Hercules Incorporated. “Hercules Powder Company Plant in Kenvil, New Jersey,” circa 1920. Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 45. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/bz60cw72d.
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