https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13993818Edit ImageSaveSaveEditCropCustom TextSir John Frederick William Herschel. Stipple engraving by G. Gabrielli, 1875, after himself.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 849 x 1200 px | 300 dpiLarge JPEG 2244 x 3171 px | 300 dpiFree DownloadSir John Frederick William Herschel. Stipple engraving by G. Gabrielli, 1875, after himself.More