Images from DuPont’s nylon production plant in Wilmington, Delaware, 1938 (clockwise from top left). Mike McCall pours nylon chips into a hopper; the chips will be melted, measured out and filtered before being spun into filament. An unidentified worker oversees the operation of a draw twister, which twists polymer fibers into thread. Violet Grenda inspects skeins of nylon yarn.
Joseph X. Labovsky Collection, the Institute Collections