https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/421985Edit ImageSaveSaveEditCropCustom TextAT&T/SBC Switching Center. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 1200 x 961 px | 300 dpiLarge JPEG 2864 x 2293 px | 300 dpiTIFF 2864 x 2293 px | 300 dpi | 37.62 MBFree DownloadAT&T/SBC Switching Center. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced by rawpixel.More