Map of the counties of Caithness, Inverness, Orkney, Ross and Cromarty, Sutherland, Zetland, showing burghs, civil parishes and parliamentary areas.
Great Britain.Ordnance Survey.
[Southampton?] : Ordnance Survey,
1942.
Relief shown by spot heights.
In upper right margin: Sheet 4.
"Boundaries on this map are revised to 1-8-42."