https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14004294Edit ImageSaveSaveEditCropCustom TextSection and elevation of a wheel used by the Chinese for raising water. Engraving by W. Skelton, 1796.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 902 px | 300 dpiLarge JPEG 3224 x 2424 px | 300 dpiFree DownloadSection and elevation of a wheel used by the Chinese for raising water. Engraving by W. Skelton, 1796.More