: Location of NK/NT boundary stone - Caldecott road
: Passage intersections near 150m contour level - 1941 Map (b)
: Location of NK/NT boundary stone (Beacon Hill) - 1941 Map
: Passage intersections near 150m contour level a
: Location of NK/NT boundary stone - JATs incline
: Location of NK/NT boundary stone (Caldecott road) - 1941 Map
: Passage intersections near 150m contour level b
: Location of NK/NT boundary stone - Beacon Hill
: Passage intersections near 150m contour level - 1941 Map (a)
: Location of NK/NT boundary stone (JAT's Incline)