https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13984531Edit ImageSaveSaveEditCropCustom TextA man and his assistant holding a rope to survey a field. Woodcut, 15--.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 792 x 1200 px | 300 dpiLarge JPEG 1206 x 1828 px | 300 dpiFree DownloadA man and his assistant holding a rope to survey a field. Woodcut, 15--.More