https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13997624Edit ImageSaveSaveEditCropCustom TextWilliam Dobinson Halliburton. Photograph by Elliott & Fry.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 824 x 1200 px | 300 dpiLarge JPEG 2243 x 3265 px | 300 dpiFree DownloadWilliam Dobinson Halliburton. Photograph by Elliott & Fry.More