https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13981131Edit ImageSaveSaveEditCropCustom TextGeorg Gottlob Richter. Line engraving by G. D. Heumann after himself.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 898 x 1200 px | 300 dpiLarge JPEG 2400 x 3207 px | 300 dpiFree DownloadGeorg Gottlob Richter. Line engraving by G. D. Heumann after himself.More