https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987171Edit ImageSaveSaveEditCropCustom TextDavid Rahn. Line engraving by H. R. Rahn, 1857.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 888 x 1200 px | 300 dpiLarge JPEG 2526 x 3414 px | 300 dpiFree DownloadDavid Rahn. Line engraving by H. R. Rahn, 1857.More