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Admiralty Compass Observatory, 1842-1971 (Manuscript) 1952 ACO/S&T/10/4
Report of Dry Dock Trial, 23 to 25 October 1952, Periscope Sextant Types, CH67, GCD 7/52.
Diary of events and précis of correspondence, 1913- 1925, by S. G. Brown and correspondence (1914 - 1927) between S.G. Brown and Admiralty. (Manuscript) 1913-1927 ACO/4/23/16
The "S. G. Brown Affair", Diary of events and précis of correspondence, 1913- 1925, by S. G. Brown and correspondence (1914 - 1927) between S.G. Brown and Admiralty.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1917-1947 ACO/S&T/16/6
Names and results (incomplete) of all those who attended gyro compass, and later, Admiralty Transmitting Magnetic Compass (ATMC) and directional gyro (DG) courses at the ACO. Includes index to names.
Typescript transcripts of Compass Observatory correspondence, ADM/235/12-14 (Manuscript) ACO/13/19
Typescript transcripts of Compass Observatory correspondence, ADM/235/12-14
Compass test reports on iron ships, including reports by Magnetic Department, 1864- 1871 (Manuscript) 1864-1871 ACO/13/22
Compass test reports on iron ships, including reports by Magnetic Department, 1864- 1871
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1949 ACO/11/4
Manuscripts removed from Compass Department Library, R & D Progress Report, typescript, 1949 issue
Gimbal errors of torpedo directional gear, 1946, Compass Department (Manuscript) 1946 ACO/13/27
Gimbal errors of torpedo directional gear, 1946, Compass Department
Patent files of P Thiessen of Deutsche Seewarte (PG 25343), Abstract of contents of an item (4); an explanation of the Magnesyn principle, 19471971 (Manuscript) 1947 ACO/13/28
Patent files of P Thiessen of Deutsche Seewarte (PG 25343), Abstract of contents of an item (4); an explanation of the Magnesyn principle, 1947
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1946 ACO/11/2
Manuscripts removed from Compass Department Library, R & D Progress Report, typescript, 1946 issue
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1907-1910 ACO/11/8
Correspondence, 1907 and 1910, British Antarctic Expedition, Lieutenant Adams and includes a copy of a letter from Ernest Shackleton to Admiral Field, 2 July 1907, re: equipment from Admiralty to be use on his expedition, letters from Captain Scott, re: compasses for the TERRA NOVA, includes miscell…
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1948 ACO/11/5
Manuscripts removed from Compass Department Library, R & D Progress Report, typescript, 1948 issue
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1953 ACO/10/7
Handbook of the Admiralty Gyro- Magnetic Compass, 1953