Keywords: US Military Telegraph Operators, Headquarters, Army of the Potomac. July 1863. - NARA - 530480.jpg Scope and content General notes 530480 Local identifier 111-B-7208 War Department Office of the Chief Signal Officer 08/01/1866 - 09/18/1947 NARA-Author Brady National Photographic Art Gallery Washington D C 1858 - Photographer 1135962 <br /> Still Picture Records Section Special Media Archives Services Division NWCS-S National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 circa 1860 1865 Record group Record Group 111 Records of the Office of the Chief Signal Officer 1860 - 1985 Record group ARC 440 Mathew Brady Photographs of Civil War-Era Personalities and Scenes compiled 1921 - 1940 documenting the period 1860 - 1865 Series ARC 524418 File unit File unit ARC Variant control numbers NAIL Control Number NWDNS-111-B-7208<br /> Search Identifier siDiscovering the Civil War Other versions <gallery> File US_Military_Telegraph_Operators _Headquarters _Army_of_the_Potomac _July_1863 _-_NARA_-_530480 tif tif File US_Military_Telegraph_Operators _Headquarters _Army_of_the_Potomac _July_1863 _-_NARA_-_530480 jpg jpg </gallery> NARA-cooperation PD-USGov Army of the Potomac Telegraphy in the American Civil War |