Security on the March - Mechanized Units

Creator(s): War Department. Office of the Chief Signal Officer. 8/1/1866-9/18/1947 (Most Recent)
Record Group 111: Records of the Office of the Chief Signal Officer, 1860 - 1985
Contact(s): National Archives at College Park - Motion Pictures (RDSM), National Archives at College Park, 8601 Adelphi Road
College Park, MD 20740-6001
Phone: [phone], Fax: [phone], Email: [e-mail]
National Archives Identifier: 36266
Local Identifier: 111-TF-2035
National Archives Catalog (series): catalog.archiv...
For more information about the making of this film, read this post on the National Archives Unwritten Record blog: unwritten-reco...