https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13978431Edit ImageSaveSaveEditCropCustom TextJohann Conrad Brunner. Line engraving by J. G. Seiller after J. J. Schärer.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 863 x 1200 px | 300 dpiLarge JPEG 2498 x 3472 px | 300 dpiFree DownloadJohann Conrad Brunner. Line engraving by J. G. Seiller after J. J. Schärer.More