<?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">siderography</topic></authority><related type="other"><topic>siderographers</topic></related><related type="other"><topic>steel engraving</topic></related><related type="other"><topic>siderographs</topic></related><related type="broader"><topic>engraving</topic></related> <note xml:lang="en"><![CDATA[ Process of engraving and printing from steel plates for the production of documents requiring long runs with precise replication, such as banknotes or postage stamps. It is mechanical a process developed by Jacob Perkins in the early 1800s, which enables the transfer of an impression from a steel plate to a steel cylinder in a rolling press. For the related printmaking process using steel or steel-faced copper plates, use "steel engraving." ]]></note></mads>