Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 171 drift. Great Britain. Ordnance Survey of England. North Decimal Degree 52.550000. South Decimal Degree 52.3833. East Decimal Degree -0.3667. West Decimal Degree -0.7833. In upper left margin: Ordnance Survey of Great Britain. Relief shown by contour interval and spot heights.Transverse Mercator projection. National grid system. "Original geological survey on the one inch scale by J. W. Judd, et al., published on Sheets 52 and 64 Old Series in 1864, 1872, and 1877. Resurvey on the six-inch scale between 1939 and 1945 by J. H. Taylor et al.".
