https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13988479Edit ImageSaveSaveEditCropCustom TextA surgeon in his workroom extracting stones from a patients head; symbolising the expulsion of 'folly' (insanity). Photogravure after J. Steen.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 994 x 1200 px | 300 dpiLarge JPEG 2418 x 2920 px | 300 dpiFree DownloadA surgeon in his workroom extracting stones from a patients head; symbolising the expulsion of 'folly' (insanity). Photogravure after J. Steen.More