Detailed 1920s ORDNANCE SURVEY Contoured MAP of North Central England incl WESTMORELAND, NORTH YORKSHIRE, NORTH WEST LANCASHIRE

1926 map, with corrections to 1929 this is a most interesting map of North Central England in the 1920s.
It is colour coded for contours - green being the closest to sea level.
The odd Submarine contours too.
The map shows stately homes, ironworks, railways and tiny stations, and no motorways at all
The scale is 1/4 inch to 1 mile and it is on cloth .
It is in excellent condition.
Please look at the photos for the area that it covers.