Horizontal Section No. 18 (n.d. c1845) Sections across the Mining Districts of Derbyshire from Axe Edge to Bolsover. Geological Survey of GB. 1st edition.Horizontal Section No. 18 (n. d. c1845) Sections across the Mining Districts of Derbyshire from Axe Edge to Bolsover. Geological Survey of GB. 1st edition. Located on Old Series one inch maps 81se & sw, and 82sw. Hand coloured engraving 69 x 101. 5cm, 1: 10,560 scale (6= 1mile), flat. Publication details, including the year, were omitted on some of the earliest maps and sections. Clean, in very good condition. John Phillips prepared these sections.