One man turns a large wheel as the other holds the rope at a distance over a series of supports, two men collect wood to light the fire for the charcoal kiln. Etching and aquatint.

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One man turns a large wheel as the other holds the rope at a distance over a series of supports, two men collect wood to light the fire for the charcoal kiln. Etching and aquatint. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.