https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14003258Edit ImageSaveSaveEditCropCustom TextDonkey engine used by Joseph Lister. Photograph, 1927.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 906 x 1200 px | 300 dpiLarge JPEG 1397 x 1850 px | 300 dpiFree DownloadDonkey engine used by Joseph Lister. Photograph, 1927.More