https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12269201Edit ImageSaveSaveEditCropCustom TextConcrete floor slabs, mud sills, and riser stools poured at central shop yard for farmers in Minnesota. Central construction permits economy in use of material. Minnesota. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 964 px | 300 dpiLarge JPEG 3500 x 2811 px | 300 dpiBest Quality JPEG 5000 x 4016 px | 300 dpiTIFF 5000 x 4016 px | 300 dpi | 19.15 MBFree DownloadConcrete floor slabs, mud sills, and riser stools poured at central shop yard for farmers in Minnesota. Central construction permits economy in use of material. Minnesota. Sourced from the Library of Congress.More