<?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">plate number blocks</topic></authority><related type="broader"><topic>stamp groupings</topic></related><variant type="other"><topic>blocks, plate number</topic></variant><variant type="other"><topic>plate blocks</topic></variant><variant type="other"><topic>plate number block</topic></variant> <note xml:lang="en"><![CDATA[ Refers to the group of stamps located in one corner of a pane that contains the plate number printed on the margin; may include as few as four stamps arranged two by two. ]]></note></mads>