https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14006273Edit ImageSaveSaveEditCropCustom TextJohn Cheyne. Stipple engraving by F. C. Lewis.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 896 x 1200 px | 300 dpiLarge JPEG 2350 x 3148 px | 300 dpiFree DownloadJohn Cheyne. Stipple engraving by F. C. Lewis.More