Concrete in the country / [American Cement Company]. (1910)
American Cement Company · Association of American Portland Cement Manufacturers · leaf 68
2i^^h rods laidin the form of a square. Have on hand an old bridlebit or hitching post ring, which will ser\ e as a lifting-ing for the concrete cover. In placing the ring in position, provide it with a^nob of twisted wire, or with a nut and large washer, to fix it firmly in the concrete.i the…