Zinc works at Mulheim an der Ruhr, Germany, 1855.
© Science Museum / Science & Society Picture Library
Lithograph by A Maugendre of the factory and office building at Mulheim, owned by the Societe Anonyme de Mines et Fonderies de Zinc de la Vieille Montagne (Vieille Montagne zinc mine and foundry company). In the foreground is a horse-drawn railway for transporting the ore, or fuel for the furnaces. Illustration from Maugendre's 'Album des usines et etablisements de la societe', (Album of factories and premises of the company), published in Paris in 1855.