This primary source comes from the Records of the Bureau of Public Roads.
Full Citation: 30-N-44-1823; Oklahoma City; 1942; Highways - Oklahoma; Historical Photograph Files, 1896 - 1963; Records of the Bureau of Public Roads, Record Group 30; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/oklahoma-city, May 14, 2024]