The cobblestone structures that contain areas in which the mortar between stones is scored by a tool can be divided into four types.
A structure has a part of a wall scored horizontally and vertically by a double edged tool. These scoring marks usually follow the contour of the stones and are not necessarily in straight lines.
A structure has the space between stones scored vertically. A thin double edged tool was used, which scored two parallel lines, leaving the
mortar between the lines appear to be raised.
A structure has scored mortar where the marks were made by a double edged tool is used to score both horizontal and vertical lines. In such an instance, the vertical scoring originates in the upper left and extends toward the lower right. Thus the scoring appears to have been done by a right-handed mason.
a structure where the stones appear to be protruding from a matrix of mortar which is scored with a double line horizontally, while vertically there is only a single tooled line.