This primary source comes from the Records of the Office of the Chief Signal Officer.
National Archives Identifier:
531325Full Citation: 'Three soldiers of the United States Army sit in place at a radar used by the 90th Coast Artillery in Casablanca, French Morocco.'; 6/19/1943; Records of the Office of the Chief Signal Officer, Record Group 111. [Online Version, https://www.docsteach.org/documents/document/three-soldiers-of-the-united-states-army-sit-in-place-at-a-radar-used-by-the-90th-coast-artillery-in-casablanca-french-morocco, April 27, 2024]