Gardner, J. 1826. Geological Map of England and Wales, Reduced from the Map in 6 Sheets Published by the Geological SocietyGardner, J. 1826. Geological Map of England and Wales, Reduced by Permission from the Map in 6 Sheets Published by the Geological Society. Published J. Gardner, London. Date on map. Approx scale 1=12. 5 miles (1: 792,000). Hand coloured engraving, 73 x 57cm, dissected and mounted on linen folding to 19 x 21cm. Age toned, colours legible but somewhat faded, lifting of panels at corners, occasional pinholes in linen at fold intersections, but otherwise