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Admiralty Compass Observatory, 1842-1971 (Manuscript) 1955 ACO/S&T/23/13
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1956 - 1956 ACO/S&T/11/6
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1814-1965 ACO/S&T/23/14
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1966 - 1966 ACO/S&T/24/1
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1967 - 1967 ACO/S&T/24/2
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1957 ACO/S&T/11/10
Computations for the values of "P" and "C" for Iron Clad cased with wood HM Ships, n.d. (Manuscript) ACO/4/4/2
The "S. G. Brown Affair", various notes circulated within the committee to assist their deliberations, n.d. (Manuscript) ACO/4/23/14
The "S. G. Brown Affair", Sir Kenneth Swan's rough Note- book, used during the enquiry, n.d. (Manuscript) 1927 ACO/4/23/17
The "S. G. Brown Affair", Verbatim reports of the proceedings of the meetings of the Philpott Committee, 1927 (Manuscript) 1927 - 1927 ACO/4/23/12
The "S. G. Brown Affair", Mr Swans summary of the sequence of patents for the correction of Gyro- compasses, n.d. (Manuscript) ACO/4/23/4
The "S. G. Brown Affair", The Harrison/ Rawlings Patent and allied papers, applications for the patent n.d. (Manuscript) ACO/4/23/5
The "S. G. Brown Affair", Precis of papers leading to the introduction of mercury control, n.d. (Manuscript) ACO/4/23/3
The "S. G. Brown Affair", Note by Swan on the effects of the H/R Patent on Henderson and Brown and allied correspondence, n.d. (Manuscript) ACO/4/23/7
The "S. G. Brown Affair", Mr Hollands summary of the sequence of events from the invention of the Gyro- compass to the adoption by Sperry of the Harrison/ Rawlings Mercury Control (Manuscript) ACO/4/23/2
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1928 - 1946 ACO/5/11
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1930 - 1930 ACO/5/2
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1952 - 1952 ACO/S&T/10/5
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1958 - 1958 ACO/S&T/10/13
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1962 - 1962 ACO/6/3
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1902-05-05 - 1902-04-15 ACO/S&T/20/24
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1902-11-01 ACO/S&T/20/25
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1953 ACO/S&T/23/1
Admiralty Compass Observatory, 1842-1971 (Manuscript) ACO/S&T/20/5