Records of the Directorate of Field Survey and predecessorsOS 521948-1975Ordnance Survey: Directorate of Field Survey: One-Inch Scale Name Books (Seventh Series and Implemenation of Continuous Revision)
This series contains files and maps relating to the names of areas, roads, landscape features and objects to be included or removed from Ordnance Survey one inch to a mile (1:63,360) mapping of Great Britain, together with the authority for their spelling. Does not include an index.
They represent continuous revision carried out to the Seventh Series, and to the one-inch mapping created when revision policy had moved away from a 'map series' approach. The series includes two Tourist Maps (Dartmoor and Exmoor) and relates to the period up to the introduction of metrication.