https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13962994Edit ImageSaveSaveEditCropCustom TextA mechanism to enable an armless person to write with a pen by operating a treadle with the foot. Engraving by G. Gladwin after R. Cocking, ca. 1820.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 770 x 1200 px | 300 dpiLarge JPEG 2160 x 3366 px | 300 dpiFree DownloadA mechanism to enable an armless person to write with a pen by operating a treadle with the foot. Engraving by G. Gladwin after R. Cocking, ca. 1820.More