https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12279689Edit ImageSaveSaveEditCropCustom TextA new electrical control board just installed to take the place of the old manual one. In the airport control room. Washington D.C. municipal airport. 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 917 px | 300 dpiLarge JPEG 3500 x 2676 px | 300 dpiBest Quality JPEG 13812 x 10560 px | 300 dpiTIFF 13812 x 10560 px | 300 dpi | 278.42 MBFree DownloadA new electrical control board just installed to take the place of the old manual one. In the airport control room. Washington D.C. municipal airport. Sourced from the Library of Congress.More