Covers Wales and southern England, showing towns, main roads, railways and canals, with outline and number of plates up to and including 84. Depths shown by isolines. Price list given for individual full-size plates. "London, agents for the sale of ordnance maps. West End, J. Arrowsmith, 10, Soho Square. T.W. Saunders, 6, Charing Cross. City, Letts Son & Steere, 8, Royal Exchange. Messrs. Longman, Brown & Co., Paternoster Row." Originally folded in covers 23 x 13 cm. Historic Maps copy has blind stamp: 6" series, 1852.