This primary source comes from the Records of the Public Buildings Service.
National Archives Identifier:
6861826Full Citation: Elevation Drawing for the South Front of the State, War and Navy Building; ca. 1866 - ca. 1874; Records of the Public Buildings Service, Record Group 121. [Online Version, https://www.docsteach.org/documents/document/elevation-drawing-for-the-south-front-of-the-state-war-and-navy-building, May 19, 2024]