<?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">depletion gilding</topic></authority><related type="broader"><topic>gilding</topic></related><variant type="other"><topic>differential pickling</topic></variant><variant type="other"><topic>gilding, depletion</topic></variant><variant type="other"><topic>nise en couleur</topic></variant><variant type="other"><topic>surface enrichment</topic></variant> <note xml:lang="en"><![CDATA[ Subtractive process which progressively removes base metals from a gold-containing alloy to produce a nearly pure layer of gold. Depletion gilding was used in ancient Greece, in Egypt in the second century BC, and in pre-Columbian America. ]]></note></mads>