https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13960624Edit ImageSaveSaveEditCropCustom TextDeaf and Dumb Institution, Glasgow. Line engraving by C. Lawrie after J. Salmon.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 877 px | 300 dpiLarge JPEG 3246 x 2371 px | 300 dpiFree DownloadDeaf and Dumb Institution, Glasgow. Line engraving by C. Lawrie after J. Salmon.More