https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14002962Edit ImageSaveSaveEditCropCustom TextA trephined human skull. Photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 862 px | 300 dpiLarge JPEG 3116 x 2238 px | 300 dpiFree DownloadA trephined human skull. Photograph.More