David Plowden (b. 1932), Railroad Yards, South Chicago, Illinois, 1966; silver print, 9 1/2 x 9 1/2 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Laid-up Ore Boats, 1966; silver print, 9 1/2 x 9 1/2 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Ore Stockpiles at Steel Mill, 1979; silver print, 9 3/4 x 9 1/2 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Steel Mills, 1979; silver print, 9 3/4 x 9 1/2 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), 80" Hot Strip Mill Finishing Strands, 1979; silver print, 9 3/4 x 9 1/2 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Republic Steel, 1982; silver print, 8 3/4 x 10 3/4 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Lake Clument, 1982; silver print, 8 3/4 x 10 3/4 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Limestone Quarry, 1985; silver print, 9 1/2 x 9 3/4 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987
David Plowden (b. 1932), Mintac, Taconite Plant, U.S. Steel Corp., 1985; silver print, 9 1/24 x 9 1/2 inches (Frame: 15 x 14 3/4 inches); Purchased with funds from the Seymour H. Knox Foundation, 1987