https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14014796Edit ImageSaveSaveEditCropCustom TextSamuel Grass. Line engraving by J. Tscherning after P. Sauerland.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 948 x 1200 px | 300 dpiLarge JPEG 2400 x 3038 px | 300 dpiFree DownloadSamuel Grass. Line engraving by J. Tscherning after P. Sauerland.More