https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14015911Edit ImageSaveSaveEditCropCustom TextJohn Dalton. Pen drawing with watercolour wash.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 977 x 1200 px | 300 dpiLarge JPEG 2542 x 3123 px | 300 dpiFree DownloadJohn Dalton. Pen drawing with watercolour wash.More