Conversion. Copper and brass processing. In the brass and copper casting shop, the operator of an electric furnace is pouring the molten metal into molds to form shells, or rough tubes, which are later formed into finished tubes. Tubes are formed by casting molten metal into these molds in which a refractory core has been inserted. The molds are mounted on a turntable, which brings them into position to receive the pouring. Chase Brass and Copper Company, Euclid, Ohio. Sourced from the Library of Congress.
View public domain image source here