https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14017954Edit ImageSaveSaveEditCropCustom TextSidney Vere Pearson. Etching by J. Copley.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 854 x 1200 px | 300 dpiLarge JPEG 2243 x 3150 px | 300 dpiFree DownloadSidney Vere Pearson. Etching by J. Copley.More