https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13994457Edit ImageSaveSaveEditCropCustom TextTrephination operation, 1821Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 877 px | 300 dpiLarge JPEG 1634 x 1194 px | 300 dpiFree DownloadTrephination operation, 1821More