FINISH AND SURFACE DIMENSIONS FOR VA-4 TYPE CURBING SHALL CONFORM TO THE FOLLOWING REQUIREMENTS: 1. Top surface of curbstone shall be sawed to an approximately true plane. 2. Back surface of curbstone shall have no projection for a distance of three (3) inches down from the top, which will exceed a batter of four (4) inches in twelve (12) inches. 3. Front face shall be at right angles to the plane of the top and shall be smooth quarry split. Drill holes in exposed part of the face will not be permitted. 4. Front face shall have no projection greater than three quarters (3/4) of an inch or projections greater than one-half (1/2) of an inch measured from the vertical plane of the face for a distance down of eight (8) inches. 5. Ends of all stones shall be square with the planes of the top and the face, and so that when stones are placed end to end as closely as possible, no space more than three-quarters (3/4) of an inch shall show in the joint for the full width of the top or down on the face for eight (8) inches. 6. Curbstones shall measure from seventeen (17) to nineteen (19) inches in depth, with a minimum of four (4) feet, and a minimum width at bottom of five (5) inches for two thirds (2/3) the length of the stone. 7. Type SB Edging - The exposed face shall be smooth quarry split to an approximately true plane having no projections or depressions which will cause over 1 inch to show between a 2 foot straight-edge and the face when the straightedge is placed as closely as possible on any part of the face...