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Admiralty Compass Observatory, 1842-1971 (Manuscript) 1954 ACO/S&T/17/9
Library Lists from the Technical library, copy numbers 7 and 8. Compiled by the librarian R D East.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1943-1958 ACO/S&T/18/2
CD Pamphlets 46, 47a, 48c, 50, 51, 52, 52a, 54, 56, 57, 58, 59, 59a, 61a, 63, 66, 68, 70, 71, 72, 73, 74a-j, 75a-k, 79, 80, 78, 1943-58, on the compass.…
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1847-1848 ACO/10/2
Bill book, 1847-1848, manufacturers bills for compasses
Typescript transcripts of Compass Observatory correspondence, ADM/235/3, 4 and 6 (Manuscript) ACO/13/17
Typescript transcripts of Compass Observatory correspondence, ADM/235/3, 4 and 6
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1912-1914 ACO/9/5
Registers of correspondence, 1912 - 1914, first correspondence of new independent compass department, with copies of letters
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1842-1890 ACO/10/1
Memoranda and Instructions re: Compasses, 1842- 1850, with some entries up to 1890, NB possibly started as Captain Johnsons Scrap Book.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1917 ACO/S&T/16/3
Printed work entitled 'Pivots & Caps in Compasses' by Lieutenant R J Bray.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1918 ACO/S&T/16/4
Photograph album subjects include processes in the machine shop,and assembling department, painting compass cards and testing compasses. The photographs are black and white and show mostly women.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1923-1924 ACO/S&T/16/5
Record of laboratory experiments and calculations which eventually led to the development of the D-Type Mercury Control for the Admiralty Gyro-Compass, believed to have been written by Mr J C Hereford later in charge of the Gyro Test Room and subsequently the Sperry Gyro-Compass School, carried out …
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1932-1993 ACO/S&T/16/7
Scrap Book for the ACO at Ditton Park, Slough, containing newspaper cuttings. Subjects include obituaries, the role of compass adjustors and "swinging" officers and the opening of a new laboratory block in 1966.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1958 ACO/S&T/17/2
Handbook of the Admiralty Gyro Compass Type 7: a Compass Department pamphlet (No. 55).
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1962 ACO/S&T/30/6
Artificial Periscope Sextant, shore trials, from 16 to 25 May 1962 and from 19 June to 29 June 1962.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1962-12-03 - 1962-12-19 ACO/S&T/30/7
Artificial Horizon Periscope Sextant, Sea Trials by G Watts and J D Lock.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1965 ACO/S&T/30/9
B.N.B.M.S Heading Transfer Tests, Preliminary Trials, re: Royal Aircraft Establishment photograph electric autocollimator.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1967 ACO/S&T/30/11
Interim report of the Laboratory Assessment of Sperry C12 Compass.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1919 ACO/S&T/15/4
"The development of the gyro-compass prior to and during the war" - part of the series The Technical History and Index - A serial history of Technical Problems dealt with by Admiralty Departments.
Correspondence with Admiralty, In letters and Out letters, 22 February 1842 to 13 January 1847. (Manuscript) 1842-02-22 - 1847-01-13 ACO/13/1
Correspondence with Admiralty, In letters and Out letters, 22 February 1842 to 13 January 1847, Compass Department
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1943 ACO/S&T/15/5
Set of compass correction pamphlets, Review of Degaussing.