https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13993843Edit ImageSaveSaveEditCropCustom TextFranz Joseph Gall. Stipple engraving by C.H. Rahl after himself.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 803 x 1200 px | 300 dpiLarge JPEG 1096 x 1638 px | 300 dpiFree DownloadFranz Joseph Gall. Stipple engraving by C.H. Rahl after himself.More