https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13998124Edit ImageSaveSaveEditCropCustom TextA jack. Engraving by R. Carpenter after C. Hardy.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 613 px | 300 dpiLarge JPEG 3500 x 1788 px | 300 dpiBest Quality JPEG 3697 x 1889 px | 300 dpiFree DownloadA jack. Engraving by R. Carpenter after C. Hardy.More