[Plans of part of higher Bebington, illustrating] supply of map data in digital form. Sheet A. Selected detail digitised and plotted at 1:1250 scale, unedited. (Sheet B. Comparison of unedited automatic plot with current 1:1250 scale map).
Southampton :  Ordnance Survey, 
[1970]
Section of O.S. 1:1250 sh. SJ 3184 NE.