Title: U.S. Air Force, Memorandum, Memorandum for Record, November 17, 1949, Top Secret, NARA.
Creator: U.S. Air Force
Date in Source: November 17, 1949
Subject: Great Britain - CIA - British intelligence - MI6 - Radio base - Kim Philby - Disguised as a RAF radio station
Format: 2 p.
Note: Top Secret