https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14013658Edit ImageSaveSaveEditCropCustom TextInstruments for trepanning, 18th century.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 864 px | 300 dpiLarge JPEG 1678 x 1208 px | 300 dpiFree DownloadInstruments for trepanning, 18th century.More