https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12239726Edit ImageSaveSaveEditCropCustom TextC.W. Kellogg, chief consultant, heat light and power unit, Materials Branch, Production Division. 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 922 x 1200 px | 300 dpiLarge JPEG 2689 x 3500 px | 300 dpiBest Quality JPEG 4324 x 5628 px | 300 dpiTIFF 4324 x 5628 px | 300 dpi | 23.23 MBFree DownloadC.W. Kellogg, chief consultant, heat light and power unit, Materials Branch, Production Division. Sourced from the Library of Congress.More