A wonderful and rare collection from the 1950s through the early 1980s. AF Manual 205-5 Guide for Security Indoctrination, May 1955. AF Manual 200-3 Handbook for Air Intelligence Officers, May 1954. AF Manual 200-30 Regional Photo Interpretation Series Antarctica, March 1953. AF Manual 205-4 Internal Security of Air force Installations, 11 September 1956. AF Regulation 205-1 Safeguarding Classified information, 1 November 1963. AF Manual 205-9, Armed Forces Censorship, 1 January 1964. DIAM 57-25-108 Major US Military Aircraft, 31 March 1984. AFTRC Manual 50-0-23, 15 June 1948. CONAC STM Number 2054, Specialized Training Manual Intel Fundamentals, 1 November 1954. AF Regulation 205-4 Armed Forces Industrial Security Regulation 31 December 1962.