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Department Archives Remove constraint Department: Archives Genre Photographs Remove constraint Genre: Photographs Genre Stereographs Remove constraint Genre: Stereographs Format Image Remove constraint Format: Image

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    • after 1895

    View overlooking the extensive salt fields in Solinen, Russia, located along the Black Sea, containing approximately 20,000 tons of salt. This photograph is one of a set of six stereographs detailing the mining and…

    • after 1895

    View of a reservoir among the extensive salt fields in Solinen, Russia, located along the Black Sea, following evaporation. Women are seen breaking up the crust of salt formed by evaporation, while masses of salt…

    • after 1895

    View of a worker examining a rotary dryer for drying salt at an unknown facility in Hutchinson, Kansas. This photograph is one of a set of six stereographs detailing the mining and production of salt.

    • after 1895

    View of salt vats where water is evaporated by means of solar heat at an unknown facility in Syracuse, New York. This photograph is one of a set of six stereographs detailing the mining and production of salt.

    • after 1895

    View of a worker inserting sticks of dynamite into blasting holes at a rock salt mine in Kansas. This photograph is one of a set of six stereographs detailing the mining and production of salt.

    • after 1895

    View of two workers operating a compressed air drill in a Kansas salt mine. This photograph is one of a set of six stereographs detailing the mining and production of salt.

    • after 1895

    View of a worker drilling bolt holes into finished steel rails at an unknown manufacturing plant. This photograph is one of a set of seven stereographs detailing the production of steel.

    • after 1895

    View of several workers removing a steel plate from a cutting machine at an unknown manufacturing plant. This photograph is one of a set of seven stereographs detailing the production of steel.

    • after 1895

    View of a worker using a rolling mill to produce steel rails at an unknown manufacturing plant. During the production of steel, mills are used to shape the steel into various forms, such as plates or rails. This…

    • after 1895

    View of a rolling mill at the Homestead Steel Mill in Pittsburgh, Pennsylvania rolling a slab of steel into a thin plate. This photograph is one of a set of seven stereographs detailing the production of steel.

    • after 1895

    View of two workers using a rolling mill to compress and lengthen billet blooms, a semi-finished steel product often transformed into finished products like rails or wire rods, at an unknown manufacturing plant. This…

    • after 1895

    View of a worker using an electric machine to draw billet, a semi-finished steel product often transformed into finished products like wire rod, from a re-heating furnace at an unknown manufacturing plant. This…

    • after 1895

    View of a worker inserting a steel ingot, a piece of relatively pure material cast into a shape suitable for further processing, into a rolling mill at an unknown manufacturing plant. During the production of steel,…

    • after 1895

    View of a 100-ton capacity ladle of liquid steel removed from an open hearth furnace at an unknown manufacturing plant. Open hearth furnaces are used to burn excess carbon and other impurities out of pig iron, an…

    • after 1895

    View of molds being removed from steel ingots after they have solidified at an unknown manufacturing plant. During the production of metals, such as iron and steel, molds are typically used to form ingots, pieces of…

    • after 1895

    View of two workers tapping open hearth furnaces and carbonizing molten metal at an unknown manufacturing plant. Open hearth furnaces are used to burn excess carbon and other impurities out of pig iron, an intermediate…

    • after 1895

    View of molten iron being poured from a blast furnace ladle into an apparatus for the purification of pig iron, intermediate product of smelting iron ore, at an unknown manufacturing plant. Blast furnaces are used to…

    • after 1895

    View of a line of furnaces in an open hearth mill at an unknown manufacturing plant. During the conversion of iron into steel, raw materials such as molten iron are "charged" or deposited into the interior of a furnace,…

    • after 1895

    View of pig iron ingots being stripped from their molds in a Bessemer mill at an unknown manufacturing plant. The Bessemer mill takes its name from the "Bessemer process," an inexpensive industrial method for the…

    • after 1895

    View of a Bessemer converter blowing iron into steel at an unknown manufacturing plant. The Bessemer converter takes its name from the "Bessemer process," an inexpensive industrial method for the mass-production of…

    • after 1895

    View of a mixer used to collect and distribute pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. This photograph is one of a set of fourteen…

    • after 1895

    View of several workers forming the bottom of a Bessemer converter at an unknown manufacturing plant. The Bessemer converter takes its name from the "Bessemer process," an inexpensive industrial method for the…

    • after 1895

    View of an apparatus for applying a coat of lime onto molds filled with pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. When processing iron ore…

    • after 1895

    View of a worker cooling pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. At this stage of production, the pig iron has been placed in sand molds…

    • after 1895

    View of two workers constructing sand molds for pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. Used to form pig iron ingots, such molds are…