Ordnance Survey of Great Britain (Aeronautical Map) : 1:500,000 R.A.F. (War).
Great Britain.Ordnance Survey.
Great Britain.War Office.General Staff.Geographical Section.
Southampton : The Survey,
1943-1944.
Relief shown by contours, tints, and spot heights. Depths shown by tints.
Each sheet includes index to adjoining sheets.
Incomplete.
Sheet 4: the Border.