Blocks and bricks, of a kind used for building or construction purposes
Leaded lights and the like (excl. such articles > 100 years old)
Slabs, squares, tiles and other articles of pressed or moulded glass, whether or not wired, of a kind used for building or construction purposes, and multicellular or foam glass in blocks, panels, plates, shells or similar forms (excl. laminated safety glass and multiplewalled insulating units of glass, and leaded lights and the like and blocks and bricks, of a kind used for building or construction purposes)