This primary source comes from the Records of the Army Air Forces, ca. 1902 - 1964.
Full Citation: Airscape of Holland Tunnel, Jersey City, NJ; 3/15/1930; New Jersey - Jersey City; "Airscapes" of American and Foreign Areas, 1917 - 1964; Records of the Army Air Forces, ca. 1902 - 1964, Record Group 18; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/airscape-of-holland-tunnel-jersey-city-nj, April 25, 2024]