Ordnance Survey: Directorate of Field Survey: Branch Files
|Title:||Ordnance Survey: Directorate of Field Survey: Branch Files|
This series contains Ordnance Survey branch files. They relate to all aspects of field survey work, including triangulation and levelling, the Retriangulation of Great Britain, resurvey, overhaul and revision, and air survey.
|Held by:||The National Archives, Kew|
|Legal status:||Public Record(s)|
|Physical description:||102 file(s)|
|Access conditions:||Subject to 30 year closure unless otherwise stated|