Horizontal Section No. 140 (1886). From Bishopstone, near Hartwell (near Buckingham and Daventry) through Warwickshire, from Rugby to near Wibtoft. Geological Survey of GB. 1stHorizontal Section No. 140 (1886). From Bishopstone, near Hartwell (near Buckingham and Daventry) through Warwickshire, from Rugby to near Wibtoft. Geological Survey of GB. 1st edition. Located on Old Series one inch maps 45ne & se, 46sw, 53nw,sw & se, and 63sw. Hand coloured engraving, 68 x 101. 5cm, 1: 10,560 scale (6= 1mile). Flat, masking taped edge, very age toned, Coloured 1922. In good condition.