Close-up view of a DuPont employee adjusting a gas cylinder on a five-position windup machine at the DuPont pilot plant in Wilmington, Delaware during the early stages of nylon production and research. The employee is identified as George Longacre.
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“Gas Cylinder on Five-Position Windup Machine,” 1938. Joseph X. Labovsky Collection of Nylon Photographs and Ephemera, Box 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/gx41mh908.
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