This primary source comes from the Records of the Army Air Forces, ca. 1902 - 1964.
Full Citation: Airscape of Upper Bay of New York Harbor on Jersey City side; 10/2/1930; 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-upper-bay-new-york-harbor-jersey-city, February 18, 2025]