This primary source comes from the Records of the Army Air Forces, ca. 1902 - 1964.
Full Citation: Airscape of State Capitol, Trenton, NJ; 10/15/1935; New Jersey - Trenton; "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://docsteach.org/documents/document/airscape-of-state-capitol-trenton-nj, May 5, 2024]