Digitised version of aeromagnetic survey records of Great Britain comprising a record for each digitised point, supported by survey and 'ends and bends' based line indexes. Original records include flight line records, worksheets, contour sheets and air photos provided by contractors at completion of each survey. Worksheets digitised by BGS during 1980's Smith and Royles 1989. Between 1955 and 1965 an airborne magnetic survey was conducted covering the land and parts of the sea areas of the United Kingdom. Different sections of the survey were conducted in different years by Hunting Geology and Geophysics Ltd. (variously Hunting Surveys Ltd. or Hunting Geophysics Ltd.) and Canadian Aeroservices Inc. The survey was funded by the Department of Scientific and Industrial Research and, in Northern Ireland, by the Department of Commerce. For the first year of survey funds were also provided by the Nuffield Foundation. The survey was overseen by the Geophysics Department of the (then) Geological Survey and Museum (subsequently Institute of Geological Sciences, subsequently British Geological Survey), in collaboration with the United Kingdom Atomic Energy Authority, Harwell, when local radiometric surveys were incorporated.