Great Britain. Board of Ordnance (Corporate Name)

A map of England & Wales divided into counties, parliamentary divisions & dioceses, shewing the principal roads, railways, rivers & canals ... projected from the triangulation for the survey made under the direction of The Honorable The Board of Ordnance on a scale of five miles to an inch and corrected to the present time , 1841 t.p. (drawn by R. Creighton ; engraved by J. Dower)