Manufacturers' Paper Co. v. United States

The importation in this case consisted of lava stone 6 or 6 feet in length, about 9 inches in depth, by 5 inches in width, the longer sides *73converging so that a cross section of the stone-would not show as a parallelogram but somewhat wedge-shaped. In their use they are fitted into an iron drum, the reduced edge of the stone being inserted in the pocket of the drum and cémented in. In its completed form this drum with the stone surface is used for grinding up paper pulp. As imported, the surface of the stone is left rough, but on the 5-inch side of the stone grooves are cut from one-half to…