https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14019042Edit ImageSaveSaveEditCropCustom TextJohann Jacob Ferber. Line engraving by C. C. Glassbach after F. G. Groschke.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 759 x 1200 px | 300 dpiLarge JPEG 2200 x 3478 px | 300 dpiFree DownloadJohann Jacob Ferber. Line engraving by C. C. Glassbach after F. G. Groschke.More