Keywords: Helicopters of the 170th and the 189th Helicopter Assault Companies, await the leading of troops at Polei Kleng, in... - NARA - 531458.tif Scope and content General notes 531458 Local identifier 111-SC-651778 Department of Defense Department of the Army Office of the Chief Signal Officer 09/18/1947 - 02/28/1964 Still Picture Records Section Special Media Archives Services Division NWCS-S National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 1969-04-10 Record group Record Group 111 Records of the Office of the Chief Signal Officer 1860 - 1985 Record group ARC 440 Signal Corps Photographs of American Military Activity compiled 1754 - 1954 Series ARC 530707 File unit File unit ARC Variant control numbers NAIL Control Number NWDNS-111-SC-651778 yes Other versions NARA-cooperation PD-USGov Vietnam War in 1969 Bell UH-1 Iroquois in the Vietnam War |