This primary source comes from the Records of the Office of Civil and Defense Mobilization.
National Archives Identifier:
7386473Full Citation: Fallout Shelter Supplies; 1951 - 1961; Civil Defense Photographs, 1951 - 1961; Records of the Office of Civil and Defense Mobilization, Record Group 304; National Archives at Boston (RE-BO), Waltham, MA. [Online Version, https://www.docsteach.org/documents/document/fallout-shelter-supplies, April 26, 2024]