Great Britain. Ordnance Survey of England. Great Britain. Geological Survey of England and Wales. Sheet 272 drift. Geological Survey of Great Britain. North Decimal Degree 51.4833. South Decimal Degree 51.3167. East Decimal Degree 0.8333. West Decimal Degree 0.4167. 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 (drift) on the one-inch scale, by C. E. Hawkins, et al, published on Old Series sheets 1,2,3 & 6, 1864-1868, with revisions 1871-1889. Re-surveyed on the six-inch scale, a small tract on the west by C. E. N. Bromehead, in 1920-1921, the remaineder in 1937-39 by S. Buchan et al.".