https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13997075Edit ImageSaveSaveEditCropCustom TextLouis Pasteur. Etching, 1891, after Nadar.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 800 x 1200 px | 300 dpiLarge JPEG 2167 x 3251 px | 300 dpiFree DownloadLouis Pasteur. Etching, 1891, after Nadar.More