https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13979470Edit ImageSaveSaveEditCropCustom TextJohannes Gessner. Line engraving by H. Pfenninger.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 827 x 1200 px | 300 dpiLarge JPEG 2352 x 3414 px | 300 dpiFree DownloadJohannes Gessner. Line engraving by H. Pfenninger.More