https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14011659Edit ImageSaveSaveEditCropCustom TextSir William Edward Lodewyk Crowther. Colour photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 1200 x 798 px | 300 dpiLarge JPEG 3250 x 2160 px | 300 dpiFree DownloadSir William Edward Lodewyk Crowther. Colour photograph.More