Records of Naval Staff DepartmentsADM 2231914-1978Admiralty: Naval Intelligence Division and Operational Intelligence Centre: Intelligence Reports and Papers
This series contains Admiralty Intelligence papers, German naval communications, Operational Intelligence Centre special intelligence summaries, special intelligence reports from Japanese and Mediterranean waters, ULTRA decrypts, essays on World War 2 by German naval staff officers, statements by German prisoners of war and intercepted enemy signals between Berlin and Tokyo. They relate to such matters as U-boat warfare, attacks on convoys, minesweeping and enemy shipping movements, together with reports by the naval intelligence division and correspondence concerning the British Naval Mission to Moscow (1941-1946). The series includes photocopies of documents cited in the official history of the intelligence services as well as a small series of message logs from the First World War.