Title: On Ultra Active Service – The Story of Australia’s Signals Intelligence Operations during World War 2
Author: Ballard, Geoffrey
Condition: Very Good +
Edition: 1st Edition
Publication Date: 1991
Cover: Hard Cover without Dust Jacket – 370 pages
Comments: The history of Australian Army Signals Intelligence. Tremendous and extremely well researched Australian military/unit history on the enormous and valuable performances of the signals intelligence services during World War Two.
The author served in the No. 4 Australian Special Wireless Section on code breaking.