https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14017121Edit ImageSaveSaveEditCropCustom TextJohann Franz Edler von Hieber. Lithograph by L. Fischer, 1839.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 829 x 1200 px | 300 dpiLarge JPEG 2330 x 3371 px | 300 dpiFree DownloadJohann Franz Edler von Hieber. Lithograph by L. Fischer, 1839.More