Extracting the stone of madness, Hieronymus Bosch, Circa 1552-1600

Cutting the stone. A man is bound to a chair while another man cuts the stone from his head. To the right visitors are sitting around a table. On the table lays a cut-out stone. On the painted circular frame a number of grotesque figures are sketched. Object Type: painting. Genre: genre art. Date: Circa 1552-1600. Place of creation: Netherlands. Dimensions: height: 41.3 cm (16.2 in); width: 30.9 cm (12.1 in). Medium: oil on oak wood. Collection: Noordbrabants Museum. B. Removing the rocks in the head