https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14018537Edit ImageSaveSaveEditCropCustom TextFriedrich Arnold. Lithograph by C. Bornemann, 1873, after P.L. Pierson.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 869 x 1200 px | 300 dpiLarge JPEG 2256 x 3114 px | 300 dpiFree DownloadFriedrich Arnold. Lithograph by C. Bornemann, 1873, after P.L. Pierson.More