There are two basic types of boundary stone.
The two basic types are:
Free-standing stones – this type of stone [illustration 1] occurs in either of two places: either where the end of a boundary line meets a path, or where a boundary line ends in open grass. Each stone is cylindrical, about 2 feet tall with its top curved. It is embedded in the ground and has four visible faces. Two opposite faces bear inscriptions, each giving the name of the parish on that side (in the illustration ‘St. B. P.’ = St Botolph’s Parish).
Wall stones – this type of stone [illustration 2] marks the end of a boundary line as it meets a wall. It is a flat piece of stone embedded within brickwork and is functionally two-dimensional. On its visible face, it bears the names of the two parishes to left and right of it, with a vertical line between the two (in illustration 2 – ‘A. S. P. | St. A. L. P.’ = All Saints Parish | St Andrew the Less Parish).
Wall stones occur in either of two positions: either embedded at the base of the wall (consequently becoming obscured by grass and plants) [illustration 3]; or embedded two or three courses of brickwork up from the base of the wall [illustration 4].
By Ian Bent