Carbonero en las montañas de Harz, litografía, publicado en 1886 - Ilustración de stock

Charcoal burner in the Harz Mountains. Since the Iron Age, high temperatures have had to be produced for iron smelting, for glassmaking and for the working of precious metals. Charcoal has been used to do this for centuries and, in order to produce it, entire forests were felled. With the increasing use of stone coal from the 18th century, the charcoal burning industry declined. Lithograph after a drawing by Otto Strützel (German painter, 1855 - 1930), published in 1886.