<?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">guilloché</topic></authority><related type="other"><topic>guilloche</topic></related><related type="broader"><topic>engraving</topic></related><variant type="other"><topic>guilloche engraving</topic></variant> <note xml:lang="en"><![CDATA[ A decorative engraving technique, in which a very precise and repetitive pattern is mechanically engraved into a surface (usually metal) with a rose engine lathe. This lathe produces precise geometric patterns and creates incisions to the surface at an even depth, which maximises light refraction. Guilloché engraving is often enhanced with a thin layer of translucent enamels, which increases the luminous quality of the engraved patterns. This combination is referred to as guilloché enamelling, and became a common decorative feature of Fabergé’s output. ]]></note></mads>