https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13975871Edit ImageSaveSaveEditCropCustom TextSir James Young Simpson invigilating an examination. Pen drawing by [E.A.G. S.], 1862.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1052 px | 300 dpiLarge JPEG 3500 x 3068 px | 300 dpiBest Quality JPEG 3536 x 3100 px | 300 dpiFree DownloadSir James Young Simpson invigilating an examination. Pen drawing by [E.A.G. S.], 1862.More