NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT--OVERSTOCK SALE -- Significantly reduced list price while supplies last The Signal Corps began in 1860. The earliest permanent signal units were formed in the National Guard in the 1880s.This volume presents official organizational history information for Signal Corps units at battalion level or above .that are organized under Table of Organization and Equipment.This compilation features lineage and heraldic data for 176 signal units. Related products: Getting the Message Through: A Branch History of the U.S. Army Signal Corps --Paperback format can be found here: https: //bookstore.gpo.gov/products/sku/008-029-00488-7 --ePub format is available through Apple iBookstore and Google Play eBookstore-- Please use ISBN: 9780160872815 to search their platform(s) for this product format.United States Army and World War II: Set 4 of 7, The Technical SErvices, Pt. 1 (Chemical, Ordnance, Transportation, and Signal) CD-ROM format can be found here: https: //bookstore.gpo.gov/products/sku/008-029-00396-1 Other products produced by the U.S. Army, Center of MIlitary History can be found here: https: //bookstore.gpo.gov/agency/1061 "