https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13977727Edit ImageSaveSaveEditCropCustom TextGerardus Johann Mulder. Line engraving by D. J. Sluyter, 1854, after B. de Porter.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 746 x 1200 px | 300 dpiLarge JPEG 2164 x 3480 px | 300 dpiFree DownloadGerardus Johann Mulder. Line engraving by D. J. Sluyter, 1854, after B. de Porter.More