https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14021878Edit ImageSaveSaveEditCropCustom TextA surgeon and his assistant operating on a patient's head and using a drill to perform the trephination. Engraving, 1731.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 651 x 1200 px | 300 dpiLarge JPEG 1899 x 3500 px | 300 dpiBest Quality JPEG 2033 x 3747 px | 300 dpiFree DownloadA surgeon and his assistant operating on a patient's head and using a drill to perform the trephination. Engraving, 1731.More