https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13973604Edit ImageSaveSaveEditCropCustom TextA malicious itinerant surgeon extracting stones from a grimacing patient's head; symbolising the extraction of 'folly' (insanity). Engraving after D. Teniers.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 902 x 1200 px | 300 dpiLarge JPEG 1621 x 2157 px | 300 dpiFree DownloadA malicious itinerant surgeon extracting stones from a grimacing patient's head; symbolising the extraction of 'folly' (insanity). Engraving after D. Teniers.More