https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13982342Edit ImageSaveSaveEditCropCustom TextSurgical instruments and patients undergoing treatment (trepanation). Engraving with etching.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 783 px | 300 dpiLarge JPEG 3456 x 2256 px | 300 dpiFree DownloadSurgical instruments and patients undergoing treatment (trepanation). Engraving with etching.More