Enamelling: an enameller painting by a window, another crouching by a furnace (top), details of the furnace (below). Engraving by Defehrt after L.J. Goussier.

Licence: Public Domain Mark

Credit: Enamelling: an enameller painting by a window, another crouching by a furnace (top), details of the furnace (below). Engraving by Defehrt after L.J. Goussier. Wellcome Collection. Source: Wellcome Collection.