Free to a good home (priority to museums or anyone who'll make it available to others) Radar System Fundamentals - NAVSHIPS 900,017 (T.O. 16-1-145) - April 1944 Generation and Transmission of Microwave Energy - TM 11-673 - June 1953 Space Navigation Handbook - NAVPERS 92988 - 1962 cheers, Nick www.virhistory.com/navy