https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13981520Edit ImageSaveSaveEditCropCustom TextEngineering: a steam plough (plan). Lithograph by Martin and Hood, 1852, after C.J. Light.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 794 px | 300 dpiLarge JPEG 3307 x 2187 px | 300 dpiFree DownloadEngineering: a steam plough (plan). Lithograph by Martin and Hood, 1852, after C.J. Light.More