Ordnance Survey England & Wales County of Northumberland.
Great Britain.Ordnance Survey.
Southampton : Ordnance Survey,
[1843-1960].
Relief shown by spot heights, hachures; 2nd & subsequent eds. with contour lines.
1st ed. (1843-1882); 2nd & subsequent eds. (1892-1960); Provisional ed. (1948-1965).
25" Old Meridian (1:2500) sheets: I.15 - CXI.7
25" New Meridian (1:2500) sheets: I.8 - CXI.11; n.LX.6 - n.LXXVII.14.