Great Britain 1 :250,000 /
Great Britain.War Office.

Relief shown variously by contours, shading, gradient tints, Spot heights and bathymetric isolines.
Military grid.
Some sheets issued by Army Map Service.
Editions vary.
Most sheets show "Air information" as of ...
Some sheets have insets.
In margin of each sheet: compilation diagram, county names and boundaries diagram and index to adjoining sheets.
Sheet 18 covers Northern Ireland.