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.