https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13984330Edit ImageSaveSaveEditCropCustom TextSir Samuel Wilks. Photograph by Herbert Watkins.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 904 x 1200 px | 300 dpiLarge JPEG 2361 x 3133 px | 300 dpiFree DownloadSir Samuel Wilks. Photograph by Herbert Watkins.More