https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13986244Edit ImageSaveSaveEditCropCustom TextJohann Carl Widemann. Line engraving by J.G. Mentzel.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 888 x 1200 px | 300 dpiLarge JPEG 2267 x 3062 px | 300 dpiFree DownloadJohann Carl Widemann. Line engraving by J.G. Mentzel.More