Ordnance Survey of Great Britain : England & Wales.
[London] : War Office,
1948-
Relief shown by contours, gradient tints and spot heights. Depths shown by contours.
Overprinted on: 4th ed. (National Grid).
Various eds. Later eds. have series designation M521.
Sheet 2: England, north central (1948 ; Ed. 6 [1960]) -- Sheet 3: England, north east (1948 ; 6th ed. 1952 ; Ed. 7 1955 [rep. 1960]) -- Sheet 4: North Wales and Manchester (5th ed. 1951) -- Sheet 6: North Midlands and Lincolnshire (1st ed. 1948 [rep. 1951]) -- Sheet 7: South Wales (5th ed. 1951 ; 6th ed. 1953) -- Sheet 8: Midlands (6th ed. 1952) -- Sheet 9: East Anglia (6th ed. 1952 ; Ed. 7 1955)