6613: Monumental or building stones, worked, & articles

66131: Setts, curbstones & flagstones, of natural stones 66132: Slate, worked, & articles of slate or agglome. slate 66133: Tiles, cubes & similar of natural stone, side < 7cm 66134: Marble, travertine, albaster, cut, flat/even surface 66135: Monumental or building stone, n.e.s., cut, even surf. 66136: Marble, travertine & albaster, moulded or worked 66139: Other monumental or building stones, moulded, worked 6613: Monumental or building stones, worked, & articles