http://www.loc.gov/exhibits/dres/dre176a.jpg

From G.E.Rost, Trachten der Berg- und Hüttenleute im Königreich Sachsen

As far back as the Middle Ages, mining had been the major basis for Saxony's wealth, the power of its rulers, and its cultural development. Silver was mined in the Erzgebirge and usually made into coins.. Later, tin, copper, iron, coal, cobalt, alum, and gold were mined as well. G.E. Rost documented various aspects of the miner's life, his dress, his workplace, and his tools, in a study accompanied by abolutely marvelous illustrations.