Great Britain. Ordnance Survey of England. Great Britain. Geological Survey of England and Wales. Sheet 235 drift. Geological Survey of Great Britain. North Decimal Degree 51.866700. South Decimal Degree 51.7000. East Decimal Degree -1.6500. West Decimal Degree -2.0667. In upper left margin: Ordnance Survey of England (Third edition). Relief shown by contour interval and spot heights. Transverse Mercator projection. National grid system. "Original geolgocial survey on the one-inch scale, by E. Hull, published partly on Sheet 44 Old Series in 1856 and 1879, and partly on Sheet 34 Old Series in 1857 and 1859. The Chipping Norton Limestone added and other beds, in part, revised on the six-inch scale by H. G. Dines in 1931 with the assistance of field-notes supplied by L. Richardson. Drift surveyed on the six-inch scale by H.G. Dines in 1931.".