<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Norman slab glass</topic></authority><related type="broader"><topic>glass by technique</topic></related><variant type="other"><topic>glass, Norman slab</topic></variant><variant type="other"><topic>slab glass, Norman</topic></variant> <note xml:lang="en"><![CDATA[ Refers to a type of glass that was invented during the Gothic Revival in the 19th century and is characterized by an uneven thickness that is thicker in the center, and thinner on the edges. It is made by blowing the molten mixture into a rectangular mold, or by blowing and molding a bubble of glass into a box shape, then cutting the sides of the box to form rectangles of glass. The glass may be clear or colored. ]]></note></mads>