Levelling Homepage Ordnance Survey's
Levelling
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'Levelling' Files

[General Levelling Files - 1GL - 2GL] (All | Viewed)

[Summary of Records of the Ordnance Survey of Great Britain]

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RefSourceDateNotes
+ - OS 45Ordnance Survey of Great Britain: Director General: Manuals and Instructions1882-1978
OS 45/82Levelling handbook: 2nd edition1963-1974
+ - OS 1Ordnance Survey: Central Registry: Registered Files (SO and CR Series)1959-1988
OS 1/131Levelling of the Ouse Catchment Area1940-1942
OS 1/134Re-levelling of Greater London1927-1948Some interesting maps and abstracts
OS 1/182Levelling: errors.1932-1944
OS 1/260Standard Tests for Triangulation and Levelling trades.1946 - 1951
OS 1/280Adjustment of the third geodetic levelling of Great Britain.1956 - 1961
OS 1/281Geodetic levelling: Scotland1926 - 1949
OS 1/315Levelling1931 - 1953
OS 1/323Investigation by Treasury Organisation and Methods Division - Trig and Levelling Division1945 - 1947
OS 1/535Island of Jersey: miscellaneous levelling records1912-1935
OS 1/907Hydrostatic levelling Bacton to North Sea gas rig1967-1972
OS 1/908Hydrostatic levelling Bacton to North Sea gas rig: second1969
OS 1/912Levelling: Cyprus1968-1969
OS 1/913Levelling: Isle of Man1968-1971
OS 1/969Levelling instruments: theodolites, etc1954-1956
OS 1/1086Levelling1953-1958
OS 1/1087Levelling1958-1967
OS 1/1139Third geodetic levelling: Scotland1956-1964Very Interesting Maps, of E&W too!
OS 1/1143Levelling: systematic errors1958-1965
OS 1/1144Levelling: standard line1958-1966
OS 1/1202Oceanographic Meteorological Research Committee: fixed station; tide gauge in relation to third geodetic levelling1961-1963
OS 1/1218International Association of Geodesy: European levelling net1960-1963
OS 1/1246Tertiary levelling: second cycle computing and adjustment1961-1963
OS 1/1254Third geodetic levelling: publication1958-1970Some interesting Stuff
OS 1/1270International Association of Geodesy: European Levelling Network1962-1963
OS 1/1311Adjustment of third geodetic levelling1956-1960
OS 1/1336Hydrostatic levelling1965-1970
OS 1/1406Adjustment of 3rd geodetic levelling of Great Britain1967-1972
OS 1/1482International Association of Geodesy : European levelling net1970 Jan 01-1974 May 01
OS 1/1589International Association of Geodesy: European Levelling Networks1959 Oct 01-1959 Oct 31
OS 1/1590Review of basic scale surveys and levelling service - Consultative questionnaires: responses and correspondence1973 May 03-1973 Nov 12
OS 1/1603Publication of professional paper on 3rd geodetic levelling of Great Britain (not published)1973 Dec 17
OS 1/1658Review of basic scale survey and levelling service policy1980 Jul 28
OS 1/10/1Levelling and contouring: notes1867
OS 1/10/2Secondary system of levelling report
OS 1/10/3Initial levelling: revision1911-1921
OS 1/10/4Whewell's levelling: Bristol Channel to English Channel1924-1927IanR
+ - OS 11Ordnance Survey: Central Registry: Policy Paper Files (PP Series)1947-1982
OS 11/37Levelling1950-1969
+ - OS 14Ordnance Survey: Central Registry: Experiment Files (E Series)1950-1988
OS 14/54Minor experiments : trigonometry and levelling including reports1968 Feb 01-1969 Nov 24
OS 14/60Hydrostatic levelling1965 Dec 01-1972 Mar 31
OS 14/62Levelling equipment :field tests and reports of various automatic setting levels1968 Dec 01-1977 Mar 31
OS 14/68Fourth geodetic levelling : correspondence and reports1971 Jun 01-1977 Oct 31
OS 14/81Fourth Geodetic Levelling: proposed Ordnance Survey and Institute of Oceanographic Sciences experiment to compare geodetic and hydrodynamic levelling techniques1977 Oct 14-1980 May 21
OS 14/82Geodetic levelling techniques: includes National Geodetic Survey paper 'Refraction Errors in Levelling - NGS Test Results'; report on a visit to the National Survey of Sweden to view a motorised geodetic levelling production unit in operation1980 Jul 01-1981 Sep 16
+ - OS 16Ordnance Survey: Trigonometrical and Levelling Divisions: Second Geodetic Levelling, Specimen Record ...1943-1950
OS 16/1Forward and back levelling1950
OS 16/2Forward levelling1950
OS 16/3Back levelling1950
OS 16/4Forward levelling1950
OS 16/5Forward levelling1950
OS 16/6Forward levelling1950
OS 16/7Forward levelling1950
OS 16/8Forward levelling1950
OS 16/9Forward levelling1950
OS 16/10Forward levelling1950
OS 16/11Forward levelling1950
OS 16/12Forward and back re-levelling1950
OS 16/13Forward levelling1950
OS 16/14Forward levelling1950
OS 16/15Forward levelling1950
OS 16/16Forward levelling1950
OS 16/17Forward re-levelling1950
OS 16/18Forward re-levelling1950
OS 16/19Forward and back re-levelling1950
OS 16/20Forward and back re-levelling1943
OS 16/21Forward and back re-levelling1943
OS 16/22Forward and back re-levelling1943
OS 16/23Forward levelling1943
OS 16/24Forward levelling1943
OS 16/25Forward and back re-levelling1943
OS 16/26Forward levelling1943
OS 16/27Forward re-levelling1943
OS 16/28Forward and back levelling1943
OS 16/29Forward and back levelling1943
OS 16/30Forward levelling1943
OS 16/31Forward levelling1943
OS 16/32Forward and back re-levelling1943
OS 16/33Forward levelling1943
OS 16/34Forward levelling1943
OS 16/35Forward and back re-levelling1943
OS 16/36Forward levelling1943
OS 16/37Forward and back re-levelling1943
OS 16/38Forward and back re-levelling1943
+ - OS 17Ordnance Survey: Trigonometrical and Levelling Divisions: Liverpool Levelling Books and Abstracts1862-1925
OS 17/1Place: Hampshire Type of levelling: Detail1865
OS 17/2Place: Hampshire Type of levelling: Detail1866
OS 17/3Place: Hampshire and Wiltshire Type of levelling: Detail1866
OS 17/4Place: Nottingham Type of levelling: Town1879
OS 17/5Place: Winchester, Dorking, Chertsey and Petersfield Type of levelling: Town1869
OS 17/6Place: Hampshire Type of levelling: Branch[1863]
OS 17/7Place: Bridgewater to Tavistock Type of levelling: Initial1883
OS 17/8Place: Lyme Lyme Regis to Southampton Type of levelling: Initial and Branch1862
OS 17/9Place: Cornwall Type of levelling: Initial[1878-1879]
OS 17/10Place: Hampshire Type of levelling: Initial[1864]
OS 17/11Place: Somerset Type of levelling: Branch1887
OS 17/12Place: TavistockTavistock, Dartmouth, Bideford, Barnstaple and Totnes Type of levelling: Town1882-1886
OS 17/13Place: Merioneth and Montgomery Type of levelling: Branch1885
OS 17/14Place: Yorkshire Type of levelling: Initial1888
OS 17/15Place: Yorkshire Type of levelling: Initial1888
OS 17/16Place: Darlington and environs Type of levelling: Town/InitialUndated
OS 17/17Place: Darlington and environs Type of levelling: Town/InitialUndated
OS 17/18Place: Hartlepool and environs Type of levelling: Town/InitialUndated
OS 17/19Place: Scarborough, Middlesbrough Type of levelling: Town1891-1892
OS 17/20Place: Stockton-on-Tees Type of levelling: Town1891-1892
OS 17/21Place: Cornwall, Devon Type of levelling: Branch1883
OS 17/22Place: Devon, Somerset Type of levelling: Initial1883-1884
OS 17/23Place: Devon Type of levelling: Branch1883-1884
OS 17/24Place: Devon Type of levelling: Branch1883-1884
OS 17/25Place: Devon, Somerset Type of levelling: Branch1884-1885
OS 17/26Place: Montgomery, Radnor and Cardigan Type of levelling: Branch1884-1885
OS 17/27Place: Devon Type of levelling: Branch1864-1867
OS 17/28Place: Carmarthen Type of levelling: Branch1884-1885
OS 17/29Place: Towns in Dorset and Somerset Type of levelling: Town/Branch1885-1887
OS 17/30Place: Devon Type of levelling: Branch1885-1886
OS 17/31Place: Devon, Somerset Type of levelling: Branch1885-1886
OS 17/32Place: Dorset Type of levelling: Branch1885-1886
OS 17/33Place: Dorset and Devon Type of levelling: Branch1886-1887
OS 17/34Place: Towns in Devon and Somerset Type of levelling: Town1886
OS 17/35Place: Dorset Type of levelling: Branch1886-1887
OS 17/36Place: Hampshire Type of levelling: Sectional1895
OS 17/37Place: Newcastle-upon-Tyne and environs Type of levelling: Town1895
OS 17/38Place: Sunderland, Durham Type of levelling: Sectional1895-1896
OS 17/39Place: Durham, Northumberland Type of levelling: Branch1895
OS 17/40Place: Durham Type of levelling: Branch1895
OS 17/41Place: Northumberland Type of levelling: Branch1895
OS 17/42Place: Durham Type of levelling: Branch1895-1896
OS 17/43Place: Hampshire Type of levelling: Sectional1896
OS 17/44Place: Military sites Type of levelling: Tidal/Special1896-1924
OS 17/45Place: Durham Type of levelling: Branch1896-1901
OS 17/46Place: Roxburgh and Berwick Type of levelling: Sectional1897
OS 17/47Place: Berwick and Northumberland Type of levelling: Sectional1897
OS 17/48Place: Berwick and Dumfries Type of levelling: Sectional1898
OS 17/49Place: Staffordshire Type of levelling: Revisional/Initial/Branch1897-1900
OS 17/50Place: Wiltshire Type of levelling: Sectional1900-1901
OS 17/51Place: Aberdeen and Banff Type of levelling: Sectional1900-1901
OS 17/52Place: Dorset Type of levelling: Sectional1900-1901
OS 17/53Place: Devon Type of levelling: Sectional1903-1904
OS 17/54Place: Norfolk, Suffolk Type of levelling: Sectional1903-1904
OS 17/55Place: Devon Type of levelling: Sectional1904
OS 17/56Place: Devon Type of levelling: Sectional1904-1905
OS 17/57Place: Devon Type of levelling: Sectional1904-1905
OS 17/58Place: Devon, Cornwall Type of levelling: Sectional1905
OS 17/59Place: Cornwall Type of levelling: Sectional1905-1906
OS 17/60Place: Haddington, Berwick and Peebles Type of levelling: Sectional1906-1907
OS 17/61Place: Hampshire Type of levelling: Sectional1906-1907
OS 17/62Place: Cheshire Type of levelling: Initial/Branch1907
OS 17/63Place: Cheshire Type of levelling: Branch1907
OS 17/64Place: Hampshire Type of levelling: Sectional1907
OS 17/65Place: Hampshire Type of levelling: Sectional1907-1908
OS 17/66Place: Hampshire Type of levelling: Sectional1908
OS 17/67Place: Hampshire Type of levelling: Sectional1908-1909
OS 17/68Place: Hampshire Type of levelling: Sectional1909-1922
OS 17/69Place: Berkshire Type of levelling: Revisional1910-1911
OS 17/70Place: Durham Type of levelling: Branch1914-1915
OS 17/71Place: Yorkshire, North Riding Type of levelling: Sectional1910
OS 17/72Place: Warwickshire, Staffordshire Type of levelling: Branch1912-1913
OS 17/73Place: Nottinghamshire Type of levelling: Revisional1912-1913
OS 17/74Place: Yorkshire, Durham Type of levelling: Revisional1913
OS 17/75Place: Northumberland, Durham Type of levelling: Branch1913
OS 17/76Place: Northumberland Type of levelling: Revisional1915
OS 17/77Place: Coastal erosion Type of levelling: Special1919-1920
OS 17/78Place: Staffordshire, Warwickshire and Worcestershire Type of levelling: Tertiary1912-1915
OS 17/79Place: Staffordshire Type of levelling: Tertiary1912-1914
OS 17/80Place: Staffordshire Type of levelling: Tertiary1912-1915
OS 17/81Place: Shropshire Type of levelling: Tertiary1875-1902
OS 17/82Place: Shropshire Type of levelling: Tertiary1880-1902
OS 17/83Place: Shropshire Type of levelling: Tertiary1881-1902
OS 17/84Place: Shropshire Type of levelling: Reclosing1874-1901
OS 17/85Place: Shropshire Type of levelling: Reclosing1883
OS 17/86Place: Suffolk Type of levelling: Reclosing1873-1903
OS 17/87Place: Shropshire Type of levelling: Reclosing1875-1925
OS 17/88Place: Shropshire Type of levelling: Reclosing1874-1901
OS 17/89Place: Shropshire Type of levelling: Reclosing1874-1902
OS 17/90Place: Yorkshire Type of levelling: Reclosing1905-1918
OS 17/92Place: Yorkshire Type of levelling: Reclosing1908
OS 17/93Place: Dorset, Hampshire Type of levelling: Tertiary (reclosing)1866-1908
OS 17/94Place: Suffolk Type of levelling: Reclosing1880-1903
OS 17/95Place: Suffolk Type of levelling: Reclosing1898-1903
OS 17/96Place: Yorkshire, East Riding Type of levelling: Reclosing1890-1908
+ - OS 18Ordnance Survey: Directorate of Field Survey: Cambridge Radio Telescope Observations1969-1970
OS 18/6Geodetic levelling book: forward1969
OS 18/7Geodetic levelling book: back1969
OS 18/8Geodetic levelling book: forward and back1969
OS 18/9Geodetic levelling book: forward; metric1969
OS 18/10Geodetic levelling book: back; metric1969
OS 18/11Geodetic levelling book: forward1969
OS 18/12Geodetic levelling book: back1969
OS 18/13Geodetic levelling book: back1969
OS 18/14Geodetic levelling book: forward1969
OS 18/15Geodetic levelling book: forward and back; third series1970
OS 18/16Geodetic levelling book: forward and back1969
OS 18/17Geodetic levelling book: forward and back1970
OS 18/18Geodetic levelling book: forward; metric1970
OS 18/19Geodetic levelling book: back; metric1970
OS 18/20Geodetic levelling book: forward and back1970
OS 18/21Geodetic levelling book: forward and back1970
OS 18/22Geodetic levelling book: forward and back; staff comparison readings1970
OS 18/23Geodetic levelling book: forward and back1970
OS 18/24Geodetic levelling book: back; third series1970
OS 18/25Geodetic levelling book: forward; third series1970
OS 18/26Geodetic levelling book: forward and back; third series1970
OS 18/27Geodetic levelling book: forward and back1970
OS 18/28Geodetic levelling book: forward and back1970
OS 18/29Geodetic levelling book: forward and back1970
OS 18/30Geodetic levelling book: forward and back1970
OS 18/31Geodetic levelling book: back1970
OS 18/32Geodetic levelling book: forward; metric, third series1970
OS 18/33Geodetic levelling book: back; metric, third series1970
OS 18/34Geodetic levelling book: forward and back, stock bracket experiment1970
+ - OS 54Ordnance Survey: Trigonometrical and Levelling Divisions: Levelling Books and Abstracts1874-1954
OS 54/239A 577 Special levelling (Wigton 1949) (Wiltshire 1949)1949 Jan 01 - 1949 Dec 31
OS 54/246A 584 Special levelling (Chatham - Dunkirk 1950) (Sheffield 1950) (Yorkshire 1950)1950 Jan 01 - 1950 Dec 31
OS 54/258A 596 Special levelling (Eskmeals 1952) (Aberporth 1952)1952 Jan 01 - 1952 Dec 31
+ - OS 3Ordnance Survey: Miscellanea1755-1993
OS 3/76The levelling system of Great Britain1950
OS 3/79Matters arising from the completion of the third geodetic levelling of Wales by Major J. Kelsey, RE: prepared for Commonwealth Survey Officers' Conference 19591959
OS 3/422'Levelling Instrument WILD NII: Description and Instructions for use': Author and publisher Surveying Instruments Supply Company Limited, Henry Wild, Heerbrugg SwitzerlandUNDATED-UNDATED
OS 3/437'Report on the Levelling Network of London and Kent': Author and publisher Ordnance Survey1932 Jan 01-1932 Dec 31
OS 3/439'Report on the Levelling Network of Wales': Author and publisher Ordnance Survey1932 Jan 01-1932 Dec 31
OS 3/281Draft report on the work of the Levelling Division, 1921-1926[1926]
+ - OS 5Ordnance Survey: Maps and Plans1777-1971
OS 5/188Geodetic levelling: state of work 8 Aug 19141914
OS 5/189Geodetic levelling: stations1914
OS 5/191Geodetic levelling: state of work 31 Mar 19191919
OS 5/192Geodetic levelling: lines in London area1932Basic Map
OS 5/193Index map on initial levelling in Scotlandundated
+ - OS 1Ordnance Survey: Central Registry: Registered Files (SO and CR Series)1959-1988
OS 1/284Fundamental Bench Marks1927 - 1953IanR
OS 1/339Stable Bench Marks in mining areas1933 - 1955
OS 1/1407Bench mark lists: policy1968-1971
+ - OS 3Ordnance Survey: Miscellanea1755-1993
OS 3/91Origin of the broad arrow (used by the Ordnance Survey as Bench Mark which indicates the point to which levels have been observed)1964