https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14014865Edit ImageSaveSaveEditCropCustom TextGeorge Birkbeck. Stipple engraving.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 894 px | 300 dpiLarge JPEG 3069 x 2287 px | 300 dpiFree DownloadGeorge Birkbeck. Stipple engraving.More