Levelling Homepage Ordnance Survey's
Levelling
of Great Britain
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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 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 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