Surgery: Left, surgical instruments to retrieve foreign objects from the oesophagus; right, a bladder with a bladderstone and a hernia. Engraving with etching by Defehrt after L.-J. Goussier.

Licence: Public Domain Mark

Credit: Surgery: Left, surgical instruments to retrieve foreign objects from the oesophagus; right, a bladder with a bladderstone and a hernia. Engraving with etching by Defehrt after L.-J. Goussier. Wellcome Collection. Source: Wellcome Collection.